27,000 gallon 18x36 IG pool, vinyl liner, brown stains in the deep end and on the stairs. Both areas responded to a vitamin C tablet.
I added 2.75 pounds of AA and waited about 4 hours, stains looked the same, as I added another .75 pounds (all I had left). The next day the stains were lighter but still there.
I went ahead and added the sequesterent (didn't know if I should have waited or not). It has been 2 more days and the stains are even lighter but still obviously there, you can still see where I rubbed the vitamin c tablet on the stains, its a pretty white there but the rest is still discolored.
Should I keep waiting without adding chlorine? Just to get some more AA, or something else?
I added 2.75 pounds of AA and waited about 4 hours, stains looked the same, as I added another .75 pounds (all I had left). The next day the stains were lighter but still there.
I went ahead and added the sequesterent (didn't know if I should have waited or not). It has been 2 more days and the stains are even lighter but still obviously there, you can still see where I rubbed the vitamin c tablet on the stains, its a pretty white there but the rest is still discolored.
Should I keep waiting without adding chlorine? Just to get some more AA, or something else?