Brown stains spreading

[mbar]

The stain and scale remover is a sequesterant. Check on the bottle and make sure you put enough in the water, not enough is not good, too much won't hurt anything. You may want to add another bottle of it when you do the treatment. I would turn the swg off for the 48 hours, then put it back on low. You want to bring your chlorine up slowly after all the stain is gone. I swam in my pool after 24 hours. I'm still alive, ha, ha. It should be fine to swim in the next day. Feel free to ask any other questions you may have, good luck!

[grangerhj]

If you swam the next day- what was your chlorine level? Had you lowered to 0 prior to adding the ascorbic acid? How soon afterward do you begin adding chlorine?

I have a brown stain all over pool- I use well water to fill my pool that has high iron count. I have used both Stain Out and Metal Out. The stain goes away but is back with in a week. Any suggestions?

I am battling a high CYA (135) and am using Bleach about 174 ounces/day to maintain chlorine level between 7-10ppm Water is crystal clear.

[mbar]

The chlorine was at 0 when I swam, but I must say I only jumped in to cool myself off - didn't do any real swimming. You can always put polyquat in the water if you are afraid of an algae bloom while doing a stain treatment. The only thing I can think of is to put more sequesterant in than the bottle says. Keep your ph at the low level - 7.2. The green tint to the water may be that the walls of the pool are stained slightly yellow, which yellow and blue can make the water appear green. The only way to get rid of the stain that doesn't come off with the sequeserant is to do a stain treatment with ascorbic acid or oxillac acid. With a cya of 135, you must keep your chlorine between 8ppms and 15ppms. Your shock level will be 25ppms. Don't shock your pool with high ph - high ph with high chlorine will precipitate the metals out of the water onto the surface of the pool, unless you have enough sequeserant to bind to all the metal that is in the water.