Disappearing chlorine

[arjayh]

To Watermom..........Thanks for your quick reply. Here are responses to your questions. My trichlor tabs are unwrapped and come in a plastic pail. I have about 25 left. The power powder is calcium hypochlorite and I throw in 2 pounds weekly for shock. Also in my weekly schedule I add 6 ounces of a polyquat based algaecide (which I learned about in your web site back in 2003). I also add a product called Phos-Free to keep phosphate levels at zero. As to test kits, I have two Taylor test kits...I use the K1000 for testing for chlorine as it is an OTO test as it does not hide high levels of chlorine as the Taylor DPD test does. On my own I only test for chlorine, ph & total alkalinity. I let Leslie's test for everything else.............When you asked whether my trichlor tabs were wrapped or not I immediately went t another pool supply store and bought four wrapped 3inch tabs and put them in my floaters.after a day and overnight I was disappointed to find it made no difference..........my chlorine level still read zero. In summer my pool filter runs from 7 am to 5 pm and temperatures are in the 90's and occasional 100 plus. You now know everything about my pool. I am totally stumped why the trichlor tabs are not producing a readable chlorine level
for testing.

arjayh