Black algae or metal stain

[Crazziee]

I am getting some bleach tonight after work. Should I still use 2 gallons a night? We estimated my pool to be around 20,000 gallons.

[PoolDoc]

If your pool is algae-free (except for the black algae), 1 gallon of fresh 8% store-brand bleach should be fine.

[Crazziee]

Ok, I added the 1 gallon of bleach last night. Should I add more this evening or wait on the Test kit?

Also does bleach contain Cyanuric acid?

thanks, again.

[PoolDoc]

+ Bleach contains no CYA.

+ Add 1 gallon of bleach EVERY evening, till you have the test kit.