Deep End Stain

[Patrickoleary]

2nd year with our pool. This stain the the deep end has been there since we opened the pool last year. Prior, the previous owners didn’t open the pool for four years. It was black when we opened. Since TFP, it’s been clear sailing for us since.

It doesn’t seem like an organic stain because our FC has even high enough through various SLAMs. Other thoughts? The photo shows 8 feet down from the surface.

 

[Patrickoleary]

I should mention I tried one of the stain free products last year as well.

 

[Patrickoleary]

Any ideas?

 

[JamesW]

Hard to tell. Maybe something under the liner migrating through the liner.

If chlorine and brushing doesn't work and vitamin C doesn't work, it might not come out.

 

[Patrickoleary]

Hard to tell. Maybe something under the liner migrating through the liner.

If chlorine and brushing doesn't work and vitamin C doesn't work, it might not come out.

I didn't try vitamin C directly on it. What's the best approach for that? Sock full of Vitamin C pills on a pole?