Re: Metal in pool
What kind of pucks are you using? If they are tri-chlor then they contain cya and will bring your cya up pretty fast. With a cya of 60 you want your chlorine to be at 5ppm for your low number, so your chlorine level is good. The high ph will cause the metals to fall out of solution. Just taking your ph down should help. What I don't understand is if he put in a lot of chlorine, then it should have come in at higher than 5.1. Maybe you were fighting the beginning of an algae break, but you don't measure any combined chlorine, so I don't know if he put in all that much. I don't understand how your ph is so high unless the pucks you are using contain calcium instead of cya. In order to have a puck the chlorine has to have something to bind on to, so it is either cyanuric acid (cya) or calcium (calhypo). The only way to get chlorine without these is plain bleach which only has salt in it. If there is no chlorine in the water, then you will not have any stains, because there will be nothing to make the metals fall out of solution, but I am afraid your husband is right - you need chlorine at a level to get rid of bacteria (which you can have with clear water). You don't even see an algae break out until there is enough to make the water cloudy. You will find the balance with your pool - you may just need some more sequestering agent to hold the metals in suspension. Sequestering agents should lower the ph, if not then add some acid. You are better off to keep your ph on the low side. Chlorine levels can be kept on the low side, but for a cya of 60 you need a minimum of 5. Your shock level would be 20 - if you keep up with the water you should not have to shock. It is a matter of keeping the right amount of sequestering agent in the water for the levels of chlorine you need. Feel free to ask any questions, I know it's frustrating, but it is doable (is that a word?).
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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