Black algae or metal stain

[PoolDoc]

Hm-mm. Just processed your registration. Look up your address on Google Maps, satellite view.

If Google has your house ID'd correctly, dose your pool with 2 gallons of bleach each PM (or 1/2 gallon, if you've used copper). You appear to have a 16-20x40 modified rectangle with a deep end -- those usually run ~30,000 gallons

[PoolDoc]

Sorry if that sounds creepy -- but I use registration addresses + Gmaps to screen out spammers, before upgrading membership privileges.

[Crazziee]

Thanks for getting back so quick. Those modified images do show a better picture.
Before you responded I did a ph test earlier and it was off the scale, added some muriatic acid to lower.

Once that gets circulated I will take another check. Then update my results.

I am ordering a test kit right now.

Thanks again.

[Crazziee]

Hm-mm. Just processed your registration. Look up your address on Google Maps, satellite view.

If Google has your house ID'd correctly, dose your pool with 2 gallons of bleach each PM (or 1/2 gallon, if you've used copper). You appear to have a 16-20x40 modified rectangle with a deep end -- those usually run ~30,000 gallons

Thanks for checking it out. I have been wondering if the pool store misquoted me when they said it was about 44,000 gallons

[PoolDoc]

Actually dimensions will tell. It's worth measuring it!

And . . . what did the pH test show? Muriatic acid LOWERS pH levels; soda ash / washing soda or borax (Walmart detergent section) will RAISE it.

[Crazziee]

It was higher than my test kit, so over 8.

I will measure the pool now.

[Crazziee]

Wow I was way off. Its 32x16. Excluding the steps.

[PoolDoc]

Typically about ~20,000 gallons.

[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.