We sell NSF Certified liquid chlorine and powder chlorine products to meet compliance with government regulations and/or food processing standards. The Buying Network sells complete systems from injection pumps, tanks and engineers the system for you. We stock test strips and test kits to assist in monitoring and regulating your chlorine levels.

Please contact for pricing on any of the below chlorine sanitation items:

Sodium Hypochlorite = Liquid
Calcium Hypochlorite = Powdered
12.5% liquid chlorine- 4x1gallon case
12.5% liquid chlorine- 5 gallon pail
12.5% liquid chlorine - 55 gallon drum
12.5% liquid chlorine - 220 - 330 gallon tote
65% Granular (powdered) chlorine - 25 lb pail
65% Granular (powdered chlorine - 100lb pail
65% 1" chlorine tabs - 100 lb pail
65% 3" chlorine tabs - 55 lb pail

Due to high shipping cost and low cost of the product, we only sell chlorine products in the Pacific Northwest and Alaska, and ship from Seattle, Washington

  • Household liquid bleach is approximately 4% chlorine (sodium hypochlorite)
  • Commercial liquid chlorine is 12.5% chlorine (sodium hypochlorite)
  • PPM = Parts chlorine per million parts water
  • Powdered chlorine = 65% dry chlorine (calcium hypochlorite)
Converting 65% calcium hypochlorite to liquid:
*Dissolving 1.6 lbs of 65% calcium hypochlorite powder into one gallon of hot water approximately yields a 12% chlorine solution.

Acceptable chlorine levels for potable drinking water ranges from 0.3 - 0.9 PPM. Most water district standards are 0.5 PPM.
  • Household Bleach: To obtain 0.5 PPM dilution, it takes 3 fl. oz. of 4% liquid household bleach for each 1,000 gallons of water;
  • Commercial Bleach: To obtain 0.5 PPM dilution, it takes 1 fl. oz. of 12.5% commercial liquid chlorine for each 1,000 gallons of water;
  • 65% Powdered Chlorine: To obtain 0.5 PPM dilution, it takes 3/8 oz. of 65% calcium hypochlorite for each 1,000 gallons of water;
Acceptable chlorine levels for factory process water ranges from 3.0 - 9.0 PPM.
  • Dissolving 2.0 oz. of 65% calcium hypochlorite powder in 10,000 gallons of water will impart approximately 1.0 PPM chlorine;
  • Dissolving 3.75 oz of 65% calcium hypochlorite powder in 1,000 gallons of water will impart approximately 5.0 PPM chlorine.

To calculate the amount of chlorine to inject to obtain a desired chlorine residual, use the following formula:
IR = 0.006 Q C / S
IR = Injection Rate (gallons / hr)
Q = System Flow Rate in gallons per minute
C = Desired Injection Concentration in PPM
S = Strength of chlorine bleach being injected in whole number %.
EXAMPLE: You want to inject 15 PPM chlorine into a 250 gallon per minute system, and you are using a 12% sodium hypochlorite solution. The formula will tell you how many gallons per hour of 12% bleach to add I order to achieve 15 PPM in a 250 gallon per minute flow:
IR = (0.006) (Q) (C) / (S)
IR = (0.006) (250) (15) / (12)
IR = 1.875 gallons per hour

Tanks and potable water systems require sanitation after repair. Before these systems are put back into service, they need to be disinfected. This process is called "super-chlorination". In order for "super-chlorination" to be effective, a minimum chlorine concentration of 50 PPM and a minimal contact time of four hours is required.
1. Finish tank / system repairs;
2. Hose down and flush tank / system to remove loose contaminants;
3. Drain water;
4. Obtain fresh bleach;
5. Fill tank / system to about ¼ full;
6. Calculate bleach to impart 50 PPM for entire system volume;
EXAMPLE: 10,000 gallon system
Gallons bleach (4%) = (PPM change) (water gallons) (2) / 123,000
= (50) (10,000) (2) / 123,000
= 8.13 gallons (4%) -or- 2.71 gallons (12.5%)
7. Pour bleach into tank / system;
8. Fill tank / flood system;
9. Open taps to vent air - to insure system is filled with chlorinated water;
10. Test chlorine residual at taps;
11. Maintain chlorine residual at 50 PPM;
12. Add additional bleach and open taps to circulate throughout system;
13. Dose additional chlorine to maintain minimum 50 PPM;
14. Maintain 50 PPM contact time for four hours;
15. Drain system, fill and flush with water;
16. Drain and refill & put system back into service

Calculations are considered an approximate starting point only and are based upon using non-chlorinated water. A chlorine test kit is recommended to confirm chlorine levels and for making chlorine level adjustments.

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