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How much Sodium Hypochlorite?

How much Sodium Hypochlorite?

How much Sodium Hypochlorite?

(OP)

I'm designing a 14 home water distribution system for a subdivision.  It's a 50gpm well feeding into a tank house.  Pressure, storage, and Cl contact time will be accomplished using two 1400 gallon pressure tanks operated in series.  

I plan to inject sodium hypochlorite into the system prior to the pressure tanks.  Any idea how much Cl solution I can expect to go through?  The owner will likely lease a small injector pump from his chemical supplier.  I'm trying to figure out how big of a storage tank he'll need for a 30 or 60 day supply.  I need 1 mg/l free.

Just looking for an approximate educated guess.  

Thanks,
Doug


RE: How much Sodium Hypochlorite?

First, you have to disinfect the new system according to AWWA Standard C 651.

For normal operations at 1 mg/l, you would probably be interested in using carboys as you need only 18 gallons per month of sodium hypochlorite.

http://www.cleanwaterstore.com/help/chlo_worksheet.html

RE: How much Sodium Hypochlorite?

got any iron, manganese, or sulfur? they can multiply your demand

Hydrae

RE: How much Sodium Hypochlorite?

Good post Hydrae

RE: How much Sodium Hypochlorite?

(OP)

thanks guys.

RE: How much Sodium Hypochlorite?

Dont forget ammonium! It eats chlorine 10:1, so even a 0.1ppm makes a big difference to your chlorine demand

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