Newbie - Stain removal via ascorbic acid

[PoolDoc]

Hi Herb;

Just to add to what Janet said, for subscribers, your posts appear instantly, once you've posted 6x successfully.

And, now on to the stains. Before I try to give answers, I need to get some myself:

If I understand you correctly, you have a plaster pool that was unstained till this spring? And the stains appeared when you were opening the pool?

Did the stains appear as soon as you could see the sides? (That is, did they develop over the winter) Or, did you start off clear and unstained, and have the stains appear AFTER you could see the sides and bottom of the pool?

What color are the stains?

Are you on city water or well water?

Is your pool filled with the same water that fills your toilets? If yes, what color is the interior of your toilet tank?

Looking at your test results, do you know why you had a positive result for copper? Have you added copper algaecide or used a 'mineral' product or operated a ionizer or used a Nature2 unit?

Have you used a silver algaecide?

Do you have a heater? If yes, what kind?

What condition was your pool water in when you opened?

How many gallons are in your pool . . . or what size is it?

What sort of filter do you have?

What chemicals did you use at opening? What chemicals have you used since?


. . . that should be enough, for now.

By the way, I'm going to be tied up this weekend, and so is Marie I think. So if you can post before 10 pm tonight, I'll try to respond. Otherwise, you may have to wait till Tuesday.

Ben
"PoolDoc"