Total Chlorine..Free Chlorine..Pool Shock Question..
by Jose
I need to break point the pool how much of the following chemicals I need: a- how many lbs calcium hypoclorite b- how many gals of sodium hypoclorite c- how many lbs of gas chlorine Thanks for the question Jose The question is talking about a desired change in the chlorine of the pool. I will assume it's a home pool with 33,000 gallon pool and not 330,000. The general rule to raise the chlorine level up 10ppm for every 10,000 gallons of water: Calcium Hypochlorite (67%) = 1.25 lb Sodium Hypochlorite (12%) = 3.25 qts Gas Chlorine = 13oz. Taking these numbers you would need: 4.75 lbs. of calcium hypo. to reach break-point chlorination 2.75 gallons (round up to 3) for sodium hypo. 2.5 lbs. of gas chlorine Very easy. Just multiply the 1.25 for cal hypo. by 3, which gives you 3.75 lbs. You have 3,000 gallons but you always want to over-shoot a bit when shocking a pool. 5,000 gallons would be 0.625 lbs. which is very close to 1 full lbs. Add the 3.75 and 1 to equal 4.75. You can use the equation for liquid and gas as well. Swimming Pool Chlorine Pool Shock Hope this help and good luck Robert
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