Under Water Vinyl Wall Stains

[doggie]

Read about it here http://www.focuspools.com/store/prod...?product=NCI48

I have no idea if that's a good price or not. I just wanted to show you some info on dosage and usage.

[Simmons99]

You can also use a metal sequesterant (like Jack's Magic) and lower your PH - sometimes that will lift a stain without the absorbic acid - but some experts (like mbar) can help you better.

Also - you want to get your fill water tested for copper and iron and probably keep some sequesterant in the water to prevent this in the future. Good luck!