Black algae or metal stain

[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.