23-Swimming Pool Chemicals spec 26.pdf
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- Solicitation number
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- Issued by
- Allegheny County, Pennsylvania
About this file
This specification document outlines the technical requirements for swimming pool chemicals to be procured through the SHACOG Purchasing Alliance 2026 Spring Commodities Bid, a multi-commodity procurement managed by South Hills Area Council of Governments on behalf of its participating Pennsylvania municipalities. The solicitation encompasses eight categories of swimming pool chemicals: baking soda (sodium bicarbonate), calcium hypochlorite in granular and tablet forms, chlorine gas, cyanuric acid powder, diatomaceous earth, muriatic acid, soda ash (light and dense), and sodium hypochlorite (liquid chlorine) in 12.5% and 15% concentrations. Each chemical category includes detailed specifications covering assay percentages, purity standards, impurity limits, and conformance to established industry standards such as United States Pharmacopeia, Food Chemicals Codex, and AWWA standards. Bidders must identify specific products by brand and manufacturer and provide supporting product information. Bids are due by 10:00 A.M. on Thursday, April 9, 2026, through the PennBid electronic platform, with bidders able to submit proposals on any or all chemical categories. Bidding documents became available on March 19, 2026.
Pricing for all chemicals must include delivery to participating municipalities within three working days of order placement, with delivery charges incorporated into quoted prices. All chemicals are subject to economic price adjustments as permitted under the General Instructions to Bidders, but no other price adjustments, surcharges, or fuel surcharges are permitted during the contract period. Packaging specifications vary by chemical type, including 50-pound multi-wall paper bags for baking soda, cyanuric acid, diatomaceous earth, and soda ash; 25-pound pails or 100-pound drums for calcium hypochlorite; steel cylinders for chlorine with deposit refund provisions; and various drum sizes for muriatic acid with similar deposit structures. Chlorine cylinders and muriatic acid drums and deldrums must be returned by October 1st with refunds issued within 60 days. Each bid must be accompanied by a $1,000 bid bond made payable to SHACOG Purchasing Alliance and Its Participating Municipalities, and SHACOG reserves the right to reject any or all bids or waive minor discrepancies when deemed in the best interest of member municipalities.
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SHACOG Purchasing Alliance - 2026 Specifications for Swimming Pool Chemicals (1 of 8)
SHACOG PURCHASING ALLIANCE
SWIMMING POOL CHEMICALS
SPECIFICATIONS FOR BAKING SODA
(SODIUM BICARBONATE)
INTENT:
Bids are being solicited for Baking Soda (Sodium Bicarbonate) for use in swimming pool applications.
QUALITY:
The Baking Soda (Sodium Bicarbonate) shall meet the United States Pharmacopeia and Food Chemicals Codex Specifications and shall meet the following standards:
ITEM SPECIFICATION
Assay (dry basis) 99.0% - 100.5% Insoluble Substances Meets USP test Loss on Drying 0.25% max Ammonia Meets USP test Arsenic 2 ppm max Heavy Metals 5 ppm max Carbonate Meets USP test Chloride (as Cl) 150 ppm max Sulfate (as SO4
-2) 150 ppm max
Bidder shall identify the specific product being bid by brand and/or manufacturer and provide product information with the bid.
PACKAGING:
The Baking Soda (Sodium Bicarbonate) shall be packaged in 50 pound multi-wall paper bags.
DELIVERY:
Delivery shall be made to the participating municipality. Prices quoted shall include delivery.
Delivery shall be made within three (3) working days of the order.
ECONOMIC PRICE ADJUSTMENT:
An Economic Price Adjustment is permitted as provided for in Paragraph 9 of the General Instructions to Bidders. No other price adjustments or surcharges, including fuel surcharges, may be imposed during the contract period.
SHACOG Purchasing Alliance - 2026 Specifications for Swimming Pool Chemicals (2 of 8)
SWIMMING POOL CHEMICALS
SPECIFICATIONS FOR CALCIUM HYPOCHLORITE B
GRANULAR AND TABLET
Bids are being solicited for Calcium Hypochlorite for use in swimming pool applications.
The Calcium Hypochlorite shall meet the AWWA standard for Calcium Hypochlorite (B-300-75) in either granular or tablet form. The Calcium Hypochlorite shall contain from 65% to 70% calcium hypochlorite [Ca(OCl)2] by weight when shipped.
The Calcium Hypochlorite shall be packaged in 25 pound pails or 100 pound plastic, fiber or steel drums.
SHACOG Purchasing Alliance - 2026 Specifications for Swimming Pool Chemicals (3 of 8)
SWIMMING POOL CHEMICALS
SPECIFICATIONS FOR CHLORINE
Bids are being solicited for Chlorine for use in swimming pool applications.
The Chlorine shall meet the AWWA standard for Chlorine. The Chlorine shall not contain organic impurities that will foul the operation of the chlorinating equipment and shall meet the following standards:
Chlorine, % 99.50 min Residue, % 0.00 max Moisture, % 0.005 max
CYLINDERS:
The Chlorine shall be shipped in steel cylinders, one (1) ton capacity or 150 pound capacity, each provided with suitable valves for controlling the flow of chlorine. The cylinders shall be cleaned and dried before filling. All chlorine cylinders shall have the tare weights stamped clearly and permanently on the cylinders.
CYLINDERS DEPOSIT:
Deposit charges are applicable to each one (1) ton cylinder and each 150 pound cylinder.
Deposit charges shall be refundable when cylinders are returned in good condition to the successful bidder. Successful bidder must pick up returnable cylinders no later than October 1st and refunds are to be made within sixty (60) days. All cylinders are the property of the successful bidder.
Delivery shall be made on stake body trucks equipped with hydraulic lift gates. Prices quoted shall include delivery to the participating municipality. Delivery shall be made within three (3) working days of the order.
SHACOG Purchasing Alliance - 2026 Specifications for Swimming Pool Chemicals (4 of 8)
SWIMMING POOL CHEMICALS
SPECIFICATIONS FOR CYANURIC ACID POWDER
Bids are being solicited for Cyanuric Acid Powder for use in swimming pool applications.
The Cyanuric Acid Powder shall meet the following standards:
Cyanuric Acid 99.32% Moisture 0.09% pH of 0.2% Solution 4.00 Solubility in Water (25EC) 0.2% Iron 15 PPM Particle Size 70% through 60 mesh Bulk Density 0.64
The Cyanuric Acid Powder shall be packaged in 50 pound drums.
Delivery shall be made on stake body trucks, equipped with hydraulic lift gates. Prices quoted shall include delivery. Delivery shall be made within three (3) working days of the order.
SHACOG Purchasing Alliance - 2026 Specifications for Swimming Pool Chemicals (5 of 8)
SWIMMING POOL CHEMICALS
SPECIFICATIONS FOR DIATOMACEOUS EARTH
Bids are being solicited for Diatomaceous Earth for use in swimming pool applications.
The Diatomaceous Earth (filter material) shall be resistant to all acid, except hydrophoric acid, and it shall be slowly soluble in hot alkali acid and shall be a poor conductor of heat, sound and electricity. The Diatomaceous Earth shall be Dicalite, manufactured by Grefco Corporation, or an equivalent.
MINERALOGICAL:
Marine diatomite structure. Hydrous opaline form of silica, amorphous and isotropic.
Essentially silicon dioxide.
The Diatomaceous Earth shall be packaged in and available in 50 pound multi-wall paper bags.
Delivery shall be made to the participating municipality on stake body trucks, equipped with hydraulic lift gates. Prices quoted shall include delivery. Delivery shall be made within three
(3) working days of the order.
SHACOG Purchasing Alliance - 2026 Specifications for Swimming Pool Chemicals (6 of 8)
SWIMMING POOL CHEMICALS
SPECIFICATIONS FOR MURIATIC ACID
Bids are being solicited for Muriatic Acid for use in swimming pool applications.
The Muriatic Acid shall meet the following standards:
Assay % HCL 31.45 - 32.50 Color, Apha Less than 20 Arsenic, ppm Less than 1 Iron, ppm Less than 2 Specific Gravity, @ 60EC 1.160 - 1.166 Free Chlorine, ppm 5 maximum Non-volatile Residue, ppm Less than 15 TOC, ppm Less than 40 SO3, ppm Less than 6 Sodium, ppm 0.5 maximum
The Muriatic Acid shall be packaged in 140 pound deldrums, 15 gallons drums, 30 gallon drums, 55 gallon drums or one (1) gallon containers.
DELDRUM DEPOSIT:
Deposit charges are applicable to all drums and deldrums. Deposit charges shall be refundable when the drums and deldrums are returned in good condition to the successful bidder.
Successful bidder must pick up the returnable drums and deldrums no later than October 1st and refunds are to be made within sixty (60) days. All drums and deldrums are the property of the successful bidder.
SHACOG Purchasing Alliance - 2026 Specifications for Swimming Pool Chemicals (7 of 8)
SWIMMING POOL CHEMICALS
SPECIFICATIONS FOR SODA ASH
Bids are being solicited for Light Soda Ash and Dense Soda Ash primarily for use in swimming pool applications.
The Soda Ash shall meet the following standards:
Sodium Carbonate 99.5% Equivalent Sodium Oxide 58.2% Sodium Sulfate 0.02% Sodium Chloride 0.3% Drying Loss 0.12% Iron, ppm 8 Bulk Density, lbs./ft.; 235
The Soda Ash shall be packaged and available in 50 pound multi-wall paper bags.
Delivery shall be made on stake body trucks, equipped with hydraulic lift gates. Prices quoted shall include delivery to the participating municipality. Delivery shall be made within three (3) working days of the order.
SHACOG Purchasing Alliance - 2026 Specifications for Swimming Pool Chemicals (8 of 8)
SWIMMING POOL CHEMICALS
SPECIFICATIONS FOR SODIUM HYPOCHLORITE
(LIQUID CHLORINE)
Bids are being solicited for Sodium Hypochlorite (Liquid Chlorine) for use in swimming pool applications.
The Sodium Hypochlorite (Liquid Chlorine) shall meet the AWWA standard for Sodium Hypochlorite (B-300). The Sodium Hypochlorite (Liquid Chlorine) shall be available in the following concentrations:
$ 12.5% $ 15%
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