Recurring Algae on Bottom of Pool

[jaymst]

Well I finally got rid of the algae. 20 ppm bleach for 4 - 5 days won out. The liner still has light brown stains. Don't know what it is. I am going to keep it above 5 ppm from now on and hopefully it won't return.

[CarlD]

Brown could be iron oxide or dead algae.