There's not enough information in your post to allow me to determine why you are having problems. Filling out the Pool Chart, and getting a good kit, and then using it, and THEN telling us what you find will make it possible to help. I'll put links below.
Meanwhile, if you add 3 gallons of PLAIN 6% (check %) household bleach per 10K gallons of pool water EVERY evening, till you reach a DARK yellow chlorine reading on a cheap OTO drops kit AND stop using other goop, except to get your pH between 7.0 and 8.0 . . . you'll usually go a long way toward fixing your problems..
Ben
+ Here are links to the kits we recommend:HTH 6-Way Test Kit @ Walmart+ It's much easier to answer your questions, when we have the details about your pool in one place. We often 'waste' the first few posts back and forth collecting information. So, please complete our new Pool Chart form -- it takes about 30 seconds, but will save much more than that.
Taylor K2006A (3/4 oz bottles) @ Amazon
Taylor K2006C (2 oz bottles) @ Amazon
Pool Chart Entry Form
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