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Automatic Chlorination Systems, Solution Tanks, Calcium Hypochlorite Feeders: FAQs

	Liquid Hypochlorite Injection with Diaphragm Pumps • Completely Adjustable • Variable Flow Option • Pressures to 300 psi
	Liquid Hypochlorite Injection With Peristaltic Pumps • Self Priming • Reliable • Pressures to 100 psi
	LMI Solution Tanks • 10/35/50 Gallon Solution Tank • Liquid Metronics • With lid
	Solid Calcium Hypochlorite Feeders • Long Lasting Chlorine Tablets • Precision Reliable Dosing • Open-Stream Flow

Household Bleach is 5 1/4% Sodium Hypochlorite
Liquid Pool Chlorine is 12 1/2% Sodium Hypochlorite

For best results use 12 1/2% NSF certified chlorine designed for potable water; or use fresh pool chlorine, and size the system and injection rate, so that it requires fresh solution once per month.

Hundreds of Metering Pumps and Accessories For Practically Any Flow Rate Available Including:
• Proportionally Fed Systems
• Electronic Flow Meters
• Flow Computers
• Check Valves, Anti-Siphon Valves
• Static Mixers
• Electrical Mixers

How To Figure out What Size Pump to Use, and How To Set the Speed and the Stroke To Achieve Proper Dosage:

Step One: Determine your solution strength. For low flow rates of 10 to 20 gallons per minute, dilute the bleach. Pool chlorine is 12% sodium hypochlorite, which also can be expressed as 120,000 parts per million (PPM). Household bleach is approximately 5% or 50,000 ppm. If you diluted pool chlorine, 1 part of bleach to 19 parts of pure water, you would end up with solution strength of 6000 ppm.
Step Two: find out the flow rate of the water you are injecting the chlorine into. Click here to find out more information on how to determine flow rates if you have a well and a pressure tank. A typical home water well flow rate is around 15 gallons per minute.
Step Three: determine the amount of chlorine you want to inject. The amount of chlorine that is required depends on the level of contaminants in the water. The chart on the Chlorination Work Sheet will help you in determining the applied dosage. For many applications, 1.5 ppm is a good place to start.
Step Four: Metering pumps are rated in gallons per day, or gallons per hour of how much chlorine solution they can pump, if the pumps are adjusted to pump at 100% output. Apply these values in the formula below, to find out how large a metering pump you need, in other words, how many gallons per day the pump can pump.
Step Five: The formula is:
Flow Rate (in gallons per minute) times the Applied Dosage (in parts per million) divided by 1440 (which is the number of minutes in a day). So assuming a flow rate of 15 gallons per minute, a solution strength of 6000 ppm, and an applied dosage of 1.5 ppm we could use this formula: 15 GPM X 1.5 PPM x 1440

--------------------------------------------------------------------------------
= 5.4 Gallons Per Day
6000 PPM

Step Six: Now that we know the output per day, (which is the same thing as output per 24 hours of well pumping time) is 5.4 gallons per day, we can select the metering pump.
Step Seven: Many metering pumps have an output of 10 gallons per day. Since we need a 5.4 gallon per day, we can just adjust the speed and/or stroke of the metering pump to achieve the desired output.
Step Eight: 5.4 divided by 10 = 54%.
Step Nine: so if you wish an applied dosage of 1.5 ppm, and your flow rate is 15 gallons per minute, and your solution strength is 6000 ppm, and you adjust your 10 gallon/day pump down to 54% output, using the speed control or the stroke control, you will achieve your desired result.

Installation Example:

See more drawings on how to install chlorination systems!

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