PURPLE WATER

[CHAZZZZ]

WATER WAS FINE SUDDENLY ,OVERNITE IT WENT PURPLE ABOVE GRND 20X12X4 WELL WATER HAD LOTS OF RAIN ???BAFFELED

[Guest]

WATER WAS FINE SUDDENLY ,OVERNITE IT WENT PURPLE ABOVE GRND 20X12X4 WELL WATER HAD LOTS OF RAIN ???BAFFELED

I have been told that adding too much total alkalinity increaser at on time will turn your water purple. Try adding it in smaller doses, such as 5lbs per day. Check your alkalinity in between doses to make sure you don't increase too much.

[kamkuda]

Purple water is from Manganese. Find a pool store that tests for manganese. It is a unusual situation and few stores will normally test for it or have the ability to do so.

[waterlog]

We've got the same purple problem. Pool store told us it was phosphates. I'm not so sure. The manganese issue seems to be a better explanation. Will adding pH increaser eliminate the problem?

[kamkuda]

Phospates will not cause a purple issue. Phospates can cause higher requirement for chlorine.
A pH change will not help, it may infact stain the pool surface.
You need a sequestering agent like Pool Magnet. It will tie up the metals so that they can be removed. Be sure to keep your chlorine level low when you are removing the metals.

[twain220]

We've got the same purple problem. Pool store told us it was phosphates. I'm not so sure. The manganese issue seems to be a better explanation. Will adding pH increaser eliminate the problem?

add a bottle of metal out, vacuum the next day and then see what happens....