Stains no quite coming out with Vitamin C, maybe not enought POP?

[dmcwhinnie]

I added some more ascorbic acid, and some more sequesterer. It seems to help, or maybe it is just my eyes. But I get the impression from comments it should be instantaneous.... I'll know better as the sun gets lower, with no shade in the yard, it is just glaring right now and hard to see the bottom of the pool.

You mention to just circulate, but not filter the water. My plumbing is such that it always runs through the filter. Is this unusual? I have a cartridge filter, so I guess I could take the filters out??

I'll keep it running, and see how it goes.

Thanks for your help.

David.

[waterbear]

IMHO, 1 lb of ascorbic acid will treat 10000 gal...therefore you needed 1.5 lbs initially. Most of the metal sequesterants I have seen also treat 10000 gal with 32 oz so you would have needed 1.5 qts. initially.
Depending on the stain it might take a few days of filtering to remove all of it. If your water is cloudy that is usually a good sign.
Did you test the stain with a vitamin C to see if it would remove it? Not all stains will be removed by only ascorbic acid...sometimes more involved procedures are needed.

[dmcwhinnie]

The interesting thing is the water isn't cloudy. I am starting to think that the stain isn't completely treatable with AA. I have ordered a stain test kit, and it is on they way. .. I guess I should have done that first.

[waterbear]

I am going to assume you ordered the Jack's Magic stain kit. It is a good one and the products work but they are expensive. Some of their stain treatments can acutally take weeks to complete so you might also need a jumbo bottle of POP (Pool Owner Patience)! You never did reply if you tested the stain with a vitimen C tablet? If that cleared the stain where it sat then ascorbic acid WILL work. If it didn't then you might need oxalic acid or even more drastic measures.

[dmcwhinnie]

Well, I don't have any vitamin C around the house.... so I can't say for sure. I did order Jack's Stain kit so we will see what it says. If it may take weeks, then I guess I will get the water back to balanced, and then tackle the stains once I know what I am dealing with.

[waterbear]

check out this post
http://www.poolforum.com/pf2/showpos...38&postcount=7

[dmcwhinnie]

I put a trichlor puck on the stains, and it definately lightened them. So I guess based on the other thread, my next steps are to get the water back in shape, and raise the chlorine to 30ppm? Should I proceed to get my water back in shape in all aspects CYA, pH, Alk, etc. and then raise the chlorine, or should I just go about raising Chlorine? I've ordered Ben's Test kit to get me started in proper water chemistry.

I guess the advice, "just get some test strips and just watch your pH once in a while and keep the chlorine just high enough so it doesn't turn green", I recieved from others wasn't quite enough.