Pool Chemicals Low Price

pool chemicals low price
Chemistry – practical application?

I would like to avoid the increasing price of common
bleach solution (sodium hypochlorite, 6% available chlorine by weight).
sold at grocery stores. Currently in my area the cheapest
generic is $ 1.50 gallon.

So I checked out the price of a crystalline substance
with formula: C3 H4 Cl2 N3 Na O5 that’s used to chlorinate pools/spas,
and is 55% by weight, available chlorine. 14 oz (397 g) of this
chemical costs $ 9.00.

If I mix up chlorine sol’n from this chemical, that is
the equivalent strength of available chlorine to that
sold in grocery stores, do I lower the cost per gallon
below store bought?

You will not lower your cost. First, you have left out the other ingredient in bleach which is sodium hydroxide (red devil lye). That will increase the cost. But just using your numbers, a gallon of bleach has 226g of active ingredient. Your $9 only buys 218 g of active ingredient (about the same). So your way will will be 6x the cost. The reason it is more expensive is that in a pool, you want the active chlorine to react slower. That is why it costs more.

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