Are the stains from metal or algae?

[tfrailey]

Thanks Watermom. I don't have any in the house, so I'll have to pick some up and try that. I don't suppose I can substitute an over 50 multivitamin, lol?

[BigDave]

Yikes! No! You already suspect a metals problem - don't put "Silver" in.

[tfrailey]

Haha Big Dave - thanks for the tip! OK, I tried the vitamin C tablet, rubbing on the same green spot until it was worn down to my fingers - didn't seem to have any affect.

[tfrailey]

Just an end of summer followup to this thread. I maintained the pool water at 5 - 10 ppm FC and CYA at 60 and the stains gradually went away. I am assuming the stains were algae and just stubborn because they faded away in a few weeks and are now gone.

[JimK]

Just an end of summer followup to this thread. I maintained the pool water at 5 - 10 ppm FC and CYA at 60 and the stains gradually went away. I am assuming the stains were algae and just stubborn because they faded away in a few weeks and are now gone.

Thanks for the follow up. It's mvery helpful to others who may have the same isue. Too many times people will post their problem but not follow up.

Btw, I had something similar happen one time. Once I started adding CL it went away.