Re: Help with stain removal and metal free
hi, sorry I was away and just got back. You are doing everything right. The whole idea is to get the chlorine up slowly while keeping the ph low. Try to keep the ph at about 7.2 and no higher than 7.4. High chlorine with high ph reacts and drops the metals out of solution to stain the surface of the pool. You do have to be careful of getting any algae, so it is a good idea to put in a polyquat 60 algacide. I would use bleach to raise the chlorine -raise the chlorine slowly, by taking it up 1 at a time. Start by getting it up to 3 and keeping it there, keeping your eye out for stains. As long as you have sequestering agent in the water, and the ph is low, you shouldn't get any stains. If you see the stains returning take the ph lower and add more sequesterant. You don't need anything else in the water. All of the metal sequesterers are basically the same - just not the really cheap ones. Let me know if you have any other questions
Northeast PA
16'x32' kidney 16K gal IG fiberglass pool; Bleach; Hayward 200lb sand filter; Hayward pump; 24hrs; Pf200; well; summer: none; winter: mesh; ; PF:7.5
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