is bleach really cheaper?

[PoolDoc]

membership upgraded.

[BigDave]

I love this thread. OP has already figured out that chlorine is chlorine an is questioning assumptions.

[dansdad]

All I can say is I use the calculator and place 12% in the bleach spot as I use ch. No problem though, Yesterday my 2006 said add 3.5 cups of 12% and 1.2 cups muriatic acid. I did and today my pool is sparkling. I cannot use the bleach calculator but since I cannot trust cheap brands anyway I'll just stick with what I get from the pool store. BTW can a chlorine granular be used if it is put in water first? I have a fiberglass pool and don't want a floater.....Thanks again Dave

[PBLsQuad450]

I have been using super cheap 6% bleach from Aldi for years. I have tested it and followed its effect on my pool by testing the pool. It is 6%. Exactly as advertised. No need to get more complicated or more expensive. I don't try to keep any over winter though.