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Ok, so I have a question...Today when figuring out our PPM chloramines, we were getting lower Total CL numbers then our Free CL numbers. We use the PalinTest method of testing the water, and nothing has changed. Our Tablets are fresh and good, and 4 out of our 6 pools got the lower numbers...

Hi everyone I have a quick question for you…Can you use sacrificial zinc anodes in a surge tank to help prevent corrosion without affecting the chemistry of the pool? We have valves in our surge tanks that are cast iron. They are old, however we are trying to prolong the life of them and...