Hi, I live in PR. I have been using pristine blue with my pool but have gotten lots of stains (blue and black) on its white finish. Also I think it has eaten up my finish. Last night I dicided to stop using pritine blue and as soon as I added chlorine and the chlorine got to the floor of the poolit got stained black. Can someone tell me what happened? Will the stains go away?
Black stain with chlorine
- Thread starter brossyvega
- Start date
Welcome to TFP!
Pristine Blue contains copper. Copper is prone to staining the pool surface. The stains can be any of several colors. Black stains are the most difficult to remove.
Stains tend to form any time the copper level is high enough and the PH goes up at all. Adding chlorine raises the PH temporarily, the PH will go back down as the chlorine gets consumed, but for a short while, especially as it is being added, the PH goes up.
What kind of surface do you have: plaster, fiberglass, vinyl, etc?
Pristine Blue contains copper. Copper is prone to staining the pool surface. The stains can be any of several colors. Black stains are the most difficult to remove.
Stains tend to form any time the copper level is high enough and the PH goes up at all. Adding chlorine raises the PH temporarily, the PH will go back down as the chlorine gets consumed, but for a short while, especially as it is being added, the PH goes up.
What kind of surface do you have: plaster, fiberglass, vinyl, etc?
The best way to remove copper stains from a plaster pool is a full drain and manual acid wash. There are other approaches, but they aren't nearly as reliable.
In the mean time, keep the PH down around 7.0 to 7.3, which will minimize any additional staining.
In the mean time, keep the PH down around 7.0 to 7.3, which will minimize any additional staining.
Welcome to TFP!!!
What kind of chlorine did you add? How did you add it?
Take a look at this article in Pool School to help us help you: pool-school/read_before_you_post
What kind of chlorine did you add? How did you add it?
Take a look at this article in Pool School to help us help you: pool-school/read_before_you_post