The RETURN of the Orange/Brown Stain!

[waterbear]

Treat the stain with ascorbic acid then use a sequestering agent to keep them from coming back...Jacks 'purple stuff' is made especially for salt water pools but Proteams Metal Magic or any of the others out there will work as well, IMHO. Woudn't hurt to turn the SWG off while you treat (you need to get your Cl levels down anyway for it to work)

[mbar]

Thanks for the reply Waterbear! I have been looking to see about the ascorbic acid and the salt water generators.

rwkellyjr,
You will probably need very little ascorbic acid - the less the better, because the extra will just have to be eaten up by the chlorine - that's why it's hard to get your chlorine to be stable at first. Just go around the sides of the pool with a small scoop (like one for coffee) and pour it heavier where you see the stains. Let the water circulate till you see all of the stains are gone. If they aren't gone in an hour, put a little more acid in. Make sure you put the sequestering agent in, then when all the stains are gone put your filter on filter again. You can start to bring your ph up the next day, but don't take it any higher than 7.2 or 7.3 for a week. After 48 hours you can start to raise your chlorine level back to normal slowly. If you have a sand or DE filter you can put a trichlor puck in the skimmer basket, this way if the chlorine is going to stain, it will stain on the filter. Don't shock the pool for at least 2 weeks.

[edarling]

Leslie's Pool as a product called Stain Remover - it is 2 pounds for $34. It is "concentrated ascorbic acid" Is this actually different than the product you referenced on the chemical store website? Of course, aside from price IE - is there such a thing as "concentrated" AA?

I almost bought it for the quickness/convienience, but remembered I bought some stain remover for 75% off at the end of last season. I always have spring stains from filling/top off with well water and shocking, so I stock up at the end of the season for the next spring once the algae is finally done and I don't need to shock. My pool looks great after the process, but next time, I wonder if I should just by this stuff.

[mbar]

Ascorbic acid is ascorbic acid! Here is the web site that sells 5 lbs for $45. You can use thier stain remover, but you are paying more for the convenience. I'm not sure of the shipping cost.

http://www.msm-msm.com/store/agora.c...scorbic%20Acid

[TTnC4me]

Is the Ascorbic Acid approach ok to use with cartridge filters? If not, then what?

[waterbear]

It is fine to use with ANY kind of filter. I have a cartridge filter and have used it.

[waterbear]

Thanks for the reply Waterbear! I have been looking to see about the ascorbic acid and the salt water generators.

Marie, I have never seen anything to the contrary about using stain removers with SWGs. If anything the low pH might help in removing some scale from the cell (not really sure but it seems like it should since calcium is a metal). I would think that the SWG should be turned off until the process is done beause chlorine will depleate the ascorbic acid. Probably best to use bleach to bring the chlorine levels back up and then turn the SWG back on. Poolsean would be the one to ask about this.