Re: iron and copper
Sorry it took me so long to get back to you - I have been battling floods - in the basement, and in my pool!. Anyway, your water won't show metals if there is enough sequestering agent in the water because the sequestering agent bonds onto the metals and keeps them from showing up - it also keeps them from staining the pool and water. It does not matter what kind of chlorine you use, as long as you follow the "best gusess chart", which can be found as a sticky at the top of the chorine forum. So it doesn't matter if you don't use bleach.
You don't have to shock if you A) have no combined chlorine, and B) if your pool is holding it's chorine overnight, and the water is not cloudy.
I would suggest you add more sequestering agent (pool magnet), any chemical that says it will get rid of metals. It doesn't hurt to have more sequestering agent in the water than you need, but not enough and you will get stains. Then I would keep my ph low whenever you want to shock your water, or run your chlorine on the high side. If you have a sand or DE filter you can keep a trichlor puck in the skimmer - it helps to let any metals that will precipitate out stain the filter instead of the pool. DO NOT put a puck in the skimmer if you have a cartridge filter.
Hope this helps, please feel free to ask any questions you may have. It took me a long time to understand stains - and I a still learning!
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
Bookmarks