HomeMy WebLinkAbout05.M- Parks, Recreation & Community Services a,M
RESOLUTION (ID # 2962) DOC ID: 2962 G
CITY OF SAN BERNARDINO—REQUEST FOR COUNCIL ACTION
Bid Acceptance
From: Mickey Valdivia M/CC Meeting Date: 03/17/2014
Prepared by: Mitch Assumma, (909) 384-
5233
Dept: Parks, Recreation& Community Ward(s): 1
Services
Subject:
Resolution of the Mayor and Common Council of the City of San Bernardino Authorizing the
City Manager to Execute a Vendor Service Agreement and the Director of Administrative
Services to Issue a Purchase Order in the Amount of$28,600 to Commercial Aquatic Services
for the Replacement of a Two-Tank Commercial Pool Filtration System at the Hernandez Pool.
(#2962)
Current Business Registration Certificate: No
Financial Impact:
Account Budgeted Amount: $28,600
Account No. 119-380-0077-5502-0000
Account Description: 2013-14 CDBG Park Improvement Projects - Professional/Contractual
Services
Balance as o£ January 2014, $315,000
Balance after approval of this item: $286,400
Please note this balance does not indicate available funding. It does not include non-encumbered
reoccurring expenses or expenses incurred, but not yet processed.
Motion: Adopt the Resolution.
Synopsis of Previous Council Action:
No prior action taken.
Background:
The Parks, Recreation, and Community Services Department ("Department") maintains
and operates various public pool locations throughout the City of San Bernardino ("City"). The
Department public pools provide open public swim, learn-to-swim classes, training and
certification classes, and private swim parties during the summer months (May through
September). Due to financial constraints and adherence to the Pre-Pendency Plan, the
Department is unable to provide pool maintenance and community service to various City-wide
pools. The Department is requesting Council approval to utilize Commercial Aquatics Services,
Inc. ("Commercial Aquatic") for the replacement of a two-tank filtration system at the
Hernandez pool.
Updated: 3/12/2014 by Jolena E.Grider G Packet Pg.137
5.M
2962
Initially, Delmann Heights and Hernandez pools were selected to receive filtration
upgrades; however, at this time, the Department is sufficiently funded to provide upgrades to the
Hernandez pool. The filtration system at the Hernandez pool location is rapidly failing due to
weatherization and age of the equipment; the system has exceeded the manufacturer's life span.
When in public use or not, the pool is continuously maintained to meet California Health &
Safety Codes for Public Pool and Spa Operation. The two-tank system at the Hernandez location
is unstable with approximately 50% of the metal footing deteriorated, as well as a cracking
manifold at two anode locations. Without a properly functioning filtration system, the
Hernandez pool will become inoperable and unable to meet health and safety mandates; further
deterioration of the system will cause higher costs for rehabilitation.
The Hernandez Pool facility is located in an area with limited resources and access to
recreational pools, education regarding water safety, and training for prevention of drowning.
The public pools serve as an integral part of the leisure/recreation service plan of the
Department.
The Parks, Recreation, and Community Services Department prepared the appropriate
specifications and collaborated with the Finance Department to advertise requests for quotation
(RFQ) documents. There were no local City vendors who could support the specifications. The
formal bid process was completed on February 11, 2014. The City received five bids and
Commercial Aquatic was deemed the lowest and most responsible bidder. The bids were as
follows (bid amounts reflect servicing of Hernandez pool only):
Company Bid Amount Location
Commercial Aquatic Services, Inc. $28,600 Tustin
Waterline Technologies $33,320 Santa Ana
Nadar, Inc. $48,000 Alta Dena
Knorr Systems, Inc. $51,110 Santa Ana
Horizon Mechanical Contractors $52, 471 Arcadia
Sea Clear Pools No Price Sheet Torrance
Leslie's Swimming Pool Supplies No Bid San Bernardino
Purchasing rules and RFQ language clearly states, "...The City reserves the right to accept
or reject any and all Quotes, or any item or part thereof, or to waive any informalities or
irregularities in Quotes." Thus, the City has full discretion to accept either all or partial quotes
provided. Therefore, the RFQ including the Hernandez pool is valid and firm. At the best interest
of the City, the Department has chosen to accept bids for the Hernandez pool only.
City Attorney Review:
Supporting Documents:
reso 2962 (PDF)
agrmt 2962 (PDF)
Bid Summary Form - Filtration Replacement DH & Hem, 3-17-14 (PDF)
Updated: 3/12/2014 by Jolena E.Grider G Packet'Pg. 138
I RESOLUTION NO.
2 RESOLUTION OF THE MAYOR AND COMMON COUNCIL OF THE CITY OF SAN
BERNERDINO AUTHORIZING THE CITY MANAGER TO EXECUTE A VENDOR
3 SERVICES AGREEMENT AND THE DIRECTOR OF ADMINISTRATIVE SERVICES
4 TO ISSUE A PURCHASE ORDER IN THE AMOUNT OF $28,600 TO COMMERCIAL
AQUATIC SERVICES FOR THE REPLACEMENT OF A TWO-TANK
5 COMMERCIAL POOL FILTRATION SYSTEM AT THE HERNANDEZ POOL.
5 NOW THEREFORE, BE IT RESOLVED BY THE MAYOR AND COMMON
7 COUNCIL OF THE CITY OF SAN BERNARDINO AS FOLLOWS:
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SECTION l. The City Manager is hereby authorized and directed to execute a Vendor Q
9 Service Agreement between the City of San Bernardino and Commercial Aquatic Services, Inc. c
10 attached hereto as Exhibit"A" and incorporated herein by this reference.
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SECTION 2. The Director of Administrative Services is hereby authorized and
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directed to issue a purchase order in the amount of$2$,600 to Commercial Aquatic Services, L5
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Inc. for the replacement of a two-tank pool filtration system at the Hernandez Pool location. E
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SECTION 3. The authorization to execute the above referenced Agreement is v 1 1
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rescinded if the Agreement is not signed within sixty(60) days of the passage of this resolution. N
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I RESOLUTION OF THE MAYOR AND COMMON COUNCIL OF THE CITY OF SAN
BERNERDINO AUTHORIZING THE CITY MANAGER TO EXECUTE A VENDOR
2 SERVICES AGREEMENT AND THE DIRECTOR OF ADMINISTRATIVE SERVICES
TO ISSUE A PURCHASE ORDER IN THE AMOUNT OF $28,604 TO COMMERCIAL
3 AQUATIC SERVICES FOR THE REPLACEMENT OF A TWO-TANK
4 COMMERCIAL POOL FILTRATION SYSTEM AT THE HERNANDEZ POOL.
5 I HEREBY CERTIFY that the foregoing Resolution was duly adopted by the Mayor and
6 Common Council of the City of San Bernardino at a meeting thereof, held on the
7 day of , 2014, by the following vote, to wit:
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8 Council Members: AYES NAYS ABSTAIN ABSENT a
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9 MARQUEZ
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10 BARRIOS
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VALDIV IA
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NICKEL E
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JOHNSON
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16 MULVIHILL N
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Georgeann Hanna, City Clerk
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20 The foregoing resolution is hereby approved this day of ,2014. a
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23 R. CAREY DAVIS, Mayor
City of San Bernardino
24 Approved as to form:
GARY D. SAENZ, City Attorney
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Placket;Pg. 140
VENDOR SERVICES AGREEMENT BETWEEN THE CITY OF SAN BERNARDINO
AND COMMERCIAL AQUATICS SERVICES FOR REPLAEMENT OF A POOL
FILTRATION SYSTEM
This Vendor Services Agreement is entered into this 17TH day of March, by and
between Commercial Aquatics Services ("VENDOR") and the City of San Bernardino
("CITY" or"San Bernardino").
WITNESSETH:
WHEREAS, the Mayor and Common Council has determined that it is advantageous
and in the best interest of the CITY to contract for the replacement of a commercial pool o
filtration system for the Hernandez Center Pool in the interest of perpetuating public pool use
service delivery; and
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WHEREAS, the City of San Bernardino did solicit and accept quotes from available
vendors for professional commercial pool equipment replacement services and Commercial
Aquatics Services was the most responsible and responsive bidder. cn
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NOW,THEREFORE, the parties hereto agree as follows: s
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1. SCOPE OF SERVICES.
For the remuneration stipulated, San Bernardino hereby engages the services of
E VENDOR to provide those products and services as set forth on Exhibit "A," attached hereto and E
incorporated herein. 0
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2. COMPENSATION AND EXPENSES. o
a. For the services delineated above, the CITY, upon presentation of an invoice, shall
pay the VENDOR up to the amount of $28,600 for the replacement of a two-tank rn
pool filtration system at the Hernandez Center Pool facility. N
b. No other expenditures made by VENDOR shall be reimbursed by CITY. E L
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3. TERM; TERMINATION.
All work shall be fully completed within 60 days from the "Notice to Proceed,"but no E
later than May 23, 2014. The commercial pool filtration system shall be fully operational at that o
time. Q
This Agreement may be terminated at any time by thirty (30) days' written notice by
either party. The terms of this Agreement shall remain in force unless mutually amended. The
duration of this Agreement may be extended with the written consent of both parties.
4. INDEMNITY.
Vendor agrees to and shall indemnify and hold the City, its elected officials, employees,
agents or representatives, free and harmless from all claims, actions, damages and liabilities of
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any kind and nature arising from bodily injury, including death, or property damage, based or
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asserted upon any actual or alleged act or omission of Vendor, its employees, agents, or
subcontractors, relating to or in any way connected with the accomplishment of the work or
performance of services under this Agreement, unless the bodily injury or property damage was
actually caused by the sole negligence of the City, its elected officials, employees, agents or
representatives. As part of the foregoing indemnity, Vendor agrees to protect and defend at its
own expense, including attorney's fees, the City, its elected officials, employees, agents or
representatives from any and all legal actions based upon such actual or alleged acts or
omissions. Vendor hereby waives any and all rights to any types of express or implied
indemnity against the City, its elected officials, employees, agents or representatives, with
respect to third party claims against the Vendor relating to or in any way connected with the
accomplishment of the work or performance of services under this Agreement.
5. INSURANCE. as
While not restricting or limiting the foregoing, during the term of this Agreement,
VENDOR shall maintain in effect policies of comprehensive public, general and automobile >
liability insurance, in the amount of$1,000,000.00 combined single limit, and statutory worker's
I compensation coverage, and shall file copies of said policies with the CITY's Risk Manager
prior to undertaking any work under this Agreement. CITY shall be set forth as an additional N
named insured in each policy of insurance provided hereunder. The Certificate of Insurance
furnished to the CITY shall require the insurer to notify CITY at least 30 days prior to any a
' change in or termination of the policy. Q
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10 6. NON-DISCRIMINATION. 0
In the performance of this Agreement and in the hiring and recruitment of employees, o
VENDOR shall not engage in, nor permit its officers, employees or agents to engage in, v
discrimination in employment of persons because of their race, religion, color, national origin,
ancestry, age, mental or physical disability, medical condition, marital status, sexual gender or N
sexual orientation, or any other status protected by law.
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7. INDEPENDENT CONTRACTOR.
VENDOR shall perform work tasks provided by this Agreement, but for all intents and E
purposes VENDOR shall be an independent contractor and not an agent or employee of the
CITY. VENDOR shall secure, at its expense, and be responsible for any and all payment of
Income Tax, Social Security, State Disability Insurance Compensation, Unemployment E
Compensation, and other payroll deductions for VENDOR and its officers, agents, and
employees, and all business license, if any are required, in connection with the services to be a
performed hereunder.
S. BUSINESS REGISTRATION CERTIFICATE AND OTHER REQUIREMENTS.
VENDOR warrants that it possesses or shall obtain prior to execution of this Agreement,
and maintain a business registration certificate pursuant to Chapter S of the Municipal Code, and
any other licenses, permits, qualifications, insurance and approval of whatever nature that are
legally required of VENDOR to practice its business or profession.
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9. NOTICES.
Any notices to be given pursuant to this Agreement shall be deposited with the United
States Postal Service, postage prepaid and addressed as follows:
TO THE CITY: TO THE VENDOR:
Director of Parks, Recreation &
Community Services Commercial Aquatics Services
201 North"E" Street, Suite 301 1332 Bell Avenue
San Bernardino, CA 92401 Tustin, CA 92780
Telephone: (909) 384-5233 a
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10. ATTORNEYS' FEES >
In the event that litigation is brought by any party in connection with this Agreement, the
prevailing party shall be entitled to recover from the opposing party all costs and expenses, L
including reasonable attorneys' fees, incurred by the prevailing party in the exercise of any of its in
rights or remedies hereunder or the enforcement of any of the terms, conditions or provisions .2
hereof. The costs, salary and expenses of the City Attorney and members of his office in �.
enforcing this Agreement on behalf of the CITY shall be considered as "attorneys' fees" for the Q
purposes of this paragraph.
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11. ASSIGNMENT. C E
VENDOR shall not voluntarily or by operation of law assign, transfer, sublet or
encumber all or any part of the VENDOR's interest in this Agreement without CITY's prior N
written consent. Any attempted assignment, transfer, subletting or encumbrance shall be void o
and shall constitute a breach of this Agreement and cause for the termination of this Agreement.
Regardless of CITY's consent, no subletting or assignment shall release VENDOR of
VENDOR's obligation to perform all other obligations to be performed by VENDOR hereunder Y
for the term of this Agreement. E
12. VENUE.
The parties hereto agree that all actions or proceedings arising in connection with this E
Agreement shall be tried and litigated either in the State courts located in the County of San
Bernardino, State of California or the U.S. District Court for the Central District of California, Q
Riverside Division. The aforementioned choice of venue is intended by the parties to be
mandatory and not permissive in nature.
13. GOVERNING LAW.
This Agreement shall be governed by the laws of the State of California.
14. SUCCESSORS AND ASSIGNS.
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This Agreement shall be binding on and inure to the benefit of the parties to this
Agreement and their respective heirs, representatives, successors, and assigns.
15. HEADINGS.
The subject headings of the sections of this Agreement are included for the purposes of
convenience only and shall not affect the construction or the interpretation of any of its
provisions.
16. SEVERABILITY.
If any provision of this Agreement is determined by a court of competent jurisdiction to
be invalid or unenforceable for any reason, such determination shall not affect the validity or
enforceability of the remaining terms and provisions hereof or of the offending provision in any p
other circumstance, and the remaining provisions of this Agreement shall remain in full force a
and effect.
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17. REMEDIES; WAIVER.
All remedies available to either party for one or more breaches by the other party are and
shall be deemed cumulative and may be exercised separately or concurrently without waiver of
any other remedies. The failure of either party to act in the event of a breach of this Agreement
by the other shall not be deemed a waiver of such breach or a waiver of future breaches, unless
such waiver shall be in writing and signed by the party against whom enforcement is sought. Q
18. ENTIRE AGREEMENT; MODIFICATION.
This Agreement constitutes the entire agreement and the understanding between the o
parties, and supersedes any prior agreements and understandings relating to the subject matter of 0
this Agreement. This Agreement may be modified or amended only by a written instrument
executed by all parties to this Agreement. N
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VENDOR SERVICES AGREEMENT BETWEEN THE CITY OF SAN BERNARDINO
AND COMMERCIAL AQUATICS SERVICES FOR REPLAEMENT OF A POOL
FILTRATION SYSTEM
IN WITNESS THEREOF, the parties hereto have executed this Agreement on the day
and date set forth below.
Dated: 52014 VENDOR: Commercial Aquatics Services o
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Dated , 2014 CITY OF SAN BERNARDINO Q
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By: E
Allen Parker, City Manager v
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Approved as to Form: a
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Gary D. Saenz, City Attorney
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EXHIBIT A
SCOPE OF SERVICES
CITY OF SAN BERNARDINO
DELMANN HEIGHTS POOL &HERNANDEZ POOL— FILTRATION SYSTEM
The intent of this filter system specification is to establish material and performance criteria that
will benefit the owners and operators of said filter system. Certificated proof of materials and q
design, plus proof of performance and localized service, shall be a requirement of this
specification.
The filter system, specified herein, shall be the standard cataloged product of a company
regularly engaged in the manufacture of industrial and commercial grade fully automatic
horizontal configuration pressure type Hi-Rate Permanent Media filtration equipment. a�
The system shall consist of filter tanks, face piping with controlling valves, automated filter 2
control device (manual), gauges, hardware, air relief system, pressure amplification system,
setting templates, printed installation/operation and service manuals, filter media and printed Q
manufacturer's warranties. NOTE: The Power Amplification System at the Delmann Heights
Pool and the manual activated filter controller at Hernandez Pool shall each be salvaged and used
in the replacement systems. E
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1) FILTER PERFORMANCE CRITERIA U
The filter system shall be of the pressure type, horizontal in its configuration, suitable for a single
grade of filter media, and shall bear the listing mark of the National Sanitation Foundation (NSF
Standard 50 for a maximum flow of 20 gallons per minute per square foot of filter area with a �
maximum pressure loss across any filter tank, when clean, of 6.1 psi. N
The filter system shall consist of two (2) filter tank(s). Each tank with a total effective filter area E
of 13.5 square feet. The system will therefore have a total effective filter area of 27 square feet. C
When operating at between 15 and 20 gallons per minute per square foot, the filter system will
have a capacity of filtering between 180,000 and 237,600 gallons in six (6) hours. Each filter 0
tank in the system shall be backwashed individually, using clean filtered water from the adjacent
tank(s). Reverse flow backwash
of the filter system with raw unfiltered source water will not be acceptable. To minimize waste Q
line sizes and reduce impact on wastewater disposal systems, the maximum allowable backwash
flow rate of the entire filter system shall not exceed 248 gallons per minute.
2) FILTER TANK(S)
a) Tank(s)
The filter vessel(s) shall be 36 inches in diameter with a side shell length of 48 inches, allowing
for ease of installation, specified flow and backwash rates as well as ease of service.
Dished and flanged heads shall be butt welded to each end of the side shell. The side shell and
heads shall be carbon steel, 3/16 inch thick and suitable for a working pressure of 50 psi with a
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safety factor of 4 to 1 and a vacuum of 25 inches of mercury. Tanks fabricated of filament
wound fiberglass and/or reinforced plastic will not be acceptable methods and/or materials of
construction. Tanks fabricated of stainless steel will not be allowed unless they meet all
provisions of this specification; i.e. material thickness, welds, coatings, etc.
All welds shall be continuous, uniform and performed on the inside and outside of all joints with
in the tank(s). Jig locator and hold down fixtures shall be utilized to assure continuity of tanks
and their fitting locations.
An 11 inch x 15 inch access manway with yoke, cover and gasket shall be fitted at the front end
of the tank, providing ease of access for media loading and service. Side and top located
manways shall not be allowed as they limit tank interior access.
The filter vessel shall be fitted with two (2) 4-inch bottomed flanges located in the top side shell p
to serve as influent and effluent plumbing connections. A 2.5-inch bottomed flanged port shall be Q
located in the lower portion of the tank to serve as winterizing and/or media dump port CO
connection. Another 2.5-inch port shall be located in the upper most portion of the side shell to
serve as a manual air relief valve/port connection. All four Duplex Bottomed Flanges shall 2
contain threaded bottomed fastener ports to allow connection of companion flanges to the
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outside of the vessel without allowing fastening bolts to penetrate to the inside of the vessel.
The filter vessel shall be supported by four(4) gusseted strap type legs which shall accommodate
seismic zone 4 installation. All necessary mounting hardware shall be provided along with an Q
anchor bolt setting template for ease and accuracy of filter vessel installation.
b) Protective Coatings 2
All interior and exterior surfaces of the filter tank and its penetrations shall be grit blasted to E
white metal. All interior and outer flanged surfaces shall be bound with a seamless coating of E
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"Envirobond"TM LLD Polyethylene NSF Standard 61 listed material. There will be no separation U
between the lining and the tank allowed. The material must maintain a minimum of .20 inch
thickness inside the vessel and flow smoothly out through the flange openings and onto the
flange faces. All wetted surfaces will be inspected for proper mil thickness and holidays. N
The tank exterior surface shall be coated with 3 to 5 mils of an industrial grade polyurethane c
high gloss B finish coat.
c) Internal Distribution and Collection System CD
The internal components shall be hydraulically balanced to prevent migration of the filter media
during the filtration cycles and must uniformly fluidize the media in the backwash cycle without
channeling or breakthrough at any one location. M
The influent distribution system shall consist of no less than then (10) hydraulic distribution
lenses, which shall be fabricated of ABS plastic and PVC pipe and fittings. Distribution systems Q
consisting of slotted pipes, or splash plates, will not be acceptable.
The collection system shall consist of a one piece, molded collection header, schedule 80 piping
and molded ABS "V" slotted 12" long threaded laterals. The laterals shall be capable of retaining
a 430 grade filter media with minimum head loss.
Laterals, which are made from plastic pipe with saw, cut slots or covered pipes will not be
allowed. A minimum of twenty (20) molded laterals shall be utilized in each filter tank, assuring
an even and complete fluidization of filter media during the backwashing cycle. The combined
open area of the laterals shall not exceed a velocity of 6-feet per second at the designed filter
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flow rate. All internal components, including main headers, must be removable for repair and/or
replacement should damage occur.
d)Air Relief System
An internal automatic air bleed system shall be provided in the tank. An anti-plug protective
shield screen shall be installed on each assembly. A manually operated external air relief valve
shall be provided on the tank.
e)Winterizing/Drain and Media Dump Port
In the front of each vessel shall be located a3/4-inch drain fitting which shall allow the evacuation
of all water from the tank for the purpose of winterizing or service. A3/4-inch o-ring seal plug
adapter shall be provided for ease of removal and replacement. No media shall be allowed to
leave the tank during the draining process. p
The media dump ort shall allow for the removal of all filter media from the vessel within 30 a
minutes. This dump port shall be a minimum of 2-inches in diameter and shall be installed in the CO
front of each filter vessel, allowing for easy access. N
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3) BACKWASH VALUING AND PIPING
a) Backwash Valve Co
One (1) two-way, three port 4-inch backwash valve shall be supplied on each filter tank. The
valve body shall be machined from heavy cast bronze. Plastic valve bodies will not be
considered for this industrial/commercial use. Victaulic type couplers shall be provided at each Q
port of the valve for connection to the filter tank and manifold piping. Each valve shall be fitted
with a nominal 6-inch diameter piston operated hydraulic cylinder to actuate the valve.
Electrically or diaphragm actuated valves will not be allowed. External valve linkage will not be o
allowed for safety and potential maladjustment reasons. The internal piston shaft shall be type 0
302 stainless steel and shall be supported above and below the piston with Delrin guide bushings. 04
A silicone impregnated felt wiper shall be provided for internal shaft quad ring lubrication. All N
exterior coating of the valve shall be in accordance with the exterior coating specification of the N
filter tank. All stainless steel components used in this assembly shall be passivated and rinsed N
after forming and machining.
The backwash valve shall be designed to allow for continuous circulation pump operation during a�
the cycling between filter and backwash of the filter system. This requirement is for the !�
prevention of potential loss of circulation pump prime and/or damage to boiler, chemical feed
systems and piping. E
b) Priority Valve -Provided on all multiple tank filter systems.
A hydraulically operated 6-inch or 8-inch IPS piston type, tamper proof, valve shall be supplied Q
for use on the effluent manifold. The priority valve shall be made of PVC. A 10-inch electrical
actuated valve shall be used with I0-inch manifolds. The priority valve shall be field adjustable,
assuring the proper system flow rate and shall close upon command to restrict the effluent flow,
allowing for the designed backwash flow rate. The priority valve shall operate automatically in
concert with the system's backwash valves. External operating linkage or diaphragm actuated
valves will not be allowed.
C) Piping
The influent, effluent and waste manifolds shall be constructed of PVC Schedule 80 pipe and
fittings. The influent and effluent manifolds shall be 6" inch IPS. The manifolds shall be attached
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with victaulic type couplers fabricated of glass filled noryl to provide alignment, flexibility and
absorption of seismic stress as well as noise and vibration attenuation. The waste line shall be a
4-inch IPS manifold and shall be fitted with a waste control valve and clear 4-inch diameter sight
glass assembly. The valve shall be of the tamper proof design and require a tool for backwash
flow rate change. To minimize floor space requirements and provide unhindered access to filter
control PLC, media dump port and manhole, backwash valves and manifold piping shall be
located on top of filter tanks. All piping shall be factory assembled and pressure tested.
The assemblies shall then be coated with a material to prevent ultra violet ray degradation of the
plastic and shall color match all other system components.
4)FILTER CONTROLLER- MODEL "M" o
The filter controller shall be a manual valve actuation to initiate the backwash cycle and shall be Q
a single-knob control using a multi-port control valve to distribute water to hydraulically co
operated diaphragm valves. Multi-port control valve, influent, effluent and multi-port pressure
gauges shall be mounted on a common panel. Console shall govern the operation of the filter
system with logic provided by a programmable logic controller (PLC) with a touch screen
operator interface. It shall provide direct constant readout for modes of operation, filter flow rate, )
water temperature and alarm status. It shall also control hydraulic activation of backwash for up
to sixteen (16) filter vessels with an Electro-mechanical solenoid array. Printed circuit board a
based controllers with mechanical hydraulic multiport valves shall not be considered equal.
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5)PRESSURE SUPPLY SYSTEM E
An in-line "Y" strainer, 2-1/2 inch 0-100 psi pressure gauge and pressure regulator shall be c
supplied as part of the filter system. �?
The pressure supply system shall clean and govern the pressure of the water used to actuate the
filter system's automatic valves. 04
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6) PRESSURE AMPLIFICATION SYSTEM t°
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A Pressure Amplification System shall be provided and shall consist of a single suction E
centrifugal pump, hydro-pneumatic pressure sustaining tank, adjustable pressure switch, 50-feet
of 3/8-inch Nyio Seal tubing and all necessary tubing connectors.
This system shall use the filter system effluent water for actuation of backwash valves. E
a) Pump
The housing and impeller shall be made of molded fiberglass reinforced thermoplastic. A w
mechanical seal shall be provided between the pump housing and the motor. The seal shall be a Q
precision lapped, highly polished carbon-ceramic stainless steel shaft seal, assuring drip proof
protection.
The motor shall be a z/2 HP, single phase, 60 cycle, 3450 RPM, suitable for service with a 115
volt PLC Filter Controller or a
3/4 HP, single phase, 50 cycle, 2800 RPM, suitable for service through a relay with the 24 volt
output of the PLC Filter Controller. The motor shall be a NEMA "C" face square flange
mounting with a drip proof enclosure. The motor shall be equipped with sealed ball bearings to
provide for smooth, quiet operation.
The booster pump shall be performance rated at five(5) gallons per minute at 93-feet of head.
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b)Tank
Pressurized water shall be contained in a hydro-pneumatic steel tank which shall be lined with an
epoxy coating. The tank will employ a flexing diaphragm separating wet and dry chambers. The
steel tank shall be designed for maximum working pressure of one hundred (100) psi. Tank
connection shall be 3/4- inch NPTM.
c) Pressure Switch
A pressure switch shall be mounted directly to the pump motor and shall be rated for the
operation of a 1-1/2 HP motor at 115 volt, single phase. The switch will allow for adjustment of
cut-in and cut-out pressure.
d) Check Valve
A 1/2-inch spring loaded check valve shall be supplied as part of the assembly. The check valve o
shall be installed on the pump suction and shall be designed to retain water pressure accumulated a
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within the amplification system. co
e) Tubing and Fittings N
Fifty-feet of 3/8-inch Nylo Seal tubing and all necessary tubing to pipe fittings shall be supplied
for the connection of the Pressure Amplification System to the filter system and the PLC Filter N
Controller.
P Finish
The entire system shall be coated with an industrial grade polyurethane high gloss protective a
finish, similar in color to that of the filter system.
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7) CERTIFICATION E
Certified engineering drawings and calculations will be required for structural strength of filter c
tank(s) and seismic loads. Proof of National Sanitation Foundation (NSF) and Underwriters
Laboratories (UL) listing is also required. to
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8) GAUGE PANEL �
A molded gauge panel shall be mounted on the automatic filter control panel. It shall be fitted N
with two (2) 4-1/2 inch diameter 0-100 psi pressure gauges and a field adjustable differential E
pressure gauge/switch. an
9)HARDWARE
All fasteners (nuts, bolts and washers) employed in the system and components of the system
shall be provided by the filter manufacturer, all of which shall be cadmium plated.
10) INSTRUCTIONS
Printed and bound operating, installation and service manuals with exploded parts lists shall be
supplied with the filter system.
11) START-UP
The manufacturer of the filtration system shall provide his services or those of his locally
appointed factory representative for one day at the time of start-up of the filter system. The start-
up shall include adjustments to the filter system and all of its controlling components, calibration
"' and set-up of the filter controller and instructions to the owner and operators of the filter system.
12
Packet Pg. 150
I
The factory or its local service representative shall visit the filter system installation prior to the
completion of one year of service.
The factory/representative, with the owner and operator, will inspect all of the filter system
components for signs of wear/malfunction at that time. Any and all worn or malfunctioning
items shall be replaced at no expense to the owner. The representative will thoroughly instruct
the owner/operator on annual service procedures for the filtration system, all at no expense to the
owner.
12)FILTER MEDIA
The filter media shall be of a single grade and shall consist of uniformly graded silica sand with _
rough irregular edges, not rounded, which shall be free of limestone or clay. Twenty-one (21) o
cubic feet of media per tank will be required, support media(gravel) will not be allowed. a
a)020 Sand (recommended for general purpose use) Cn
Filter media shall be Grade #20, effective size .45 millimeter with a uniformity coefficient of 1.5
maximum.
L
d
MEDIA ANALYSIS `o
Sieve No. Percent Retained on a
(US Series) mm Opening Sieve (By Weight) Q
20 0.833 (0.333 in) 2
30 0.589 (0.023 in) 58
40 0.417 (0.016 in) 36 E
50 0.295 (0.012 in) 4 0
0
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13) PACKAGING
To protect and safeguard all components of the filter system, they shall be supplied in wooden N
crates to facilitate shipment, handling and/or storage on job site. c.,
W
rn
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14) WARRANTY E
A twenty (20) year limited warranty covering the composite filter tank, a ten (10) year limited C
warranty covering all non-electronic components, and a one (1) year full warranty covering
electrical components, shall be provided for the filter system(s) specified herein. The first three
(3) years of the warranty period shall be unconditional on all non-electrical components. The
fourth (4th) year through the end of the warranty period may be limited and prorated. On-site
warranty is provided for one full year. a
13
Packet'Pg. 151
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