Absorbic Acid...How much?

[bassadict69]

I have only looked through the skimmer with a flashlight to see if my water was still clear (it was) I could not tell about the stains.

We plan to remove the cover this weekend if I get my Absorbic in by then.

[bassadict69]

Pool is now filling but I plan on keeping the cover on it until I get the acid/metal out done. I have 2 pounds of the Absorbic acid on its way, I should have it Friday.

If I dose the acid Friday evening, how long should I wait before adding the Metal Out?

How much can I expect this to affect my pH?

I had my fill water sampled for metals today & found both copper & iron in my tap water. Looks like the Metal Out might have to be a weekly thing!

[mbar]

It will bring your ph way down. After a day you can start to bring your ph up, but don't take it any higher than 7.2 for a couple of days. You can add the ascorbic acid, let it circulate for about 40 minutes, then add the metal out - make sure you use enough metal out - and always do the maintenance dose. Metal out won't hurt anything, but if it isn't in there and you get your chlorine high, any metal in your water that isn't binded with metal out will precipitate out onto the pool surface. When you add your fill water, put your hose in the skimmer. Keep up with your chlorine demand so you don't have combined chlorine, and then you won't have to shock. Keep your filter running for 48 hours, don't backwash, and whatever you do, don't shock for at least 2 weeks! Feel free to ask if you have any questions. Good luck, this should work!

[bassadict69]

Will it hurt for my pH to get too low? How long before it will hurt?

I really appreciate the help!

[mbar]

I'm not sure with a vinyl liner, but I wouldn't let it go too long. That's why I always start to bring it up the next day - if all the stains are gone. It will take a while for it to stabalize, so you have to test it a lot. Check your Alk too, you have to get them both in balance so they become stable. Use baking soda if the alkalilnity is low, and use borax if just the ph is low.