We have a 18x42 pop up pool. It holds about 5,500 gallons of water. We have not been able to get the water to hold chlorine. We have added about a pound of cya, which is not reading on the test strips. We add chlorine every day, which reads on the test strip fine, and the next day there is no chlorine again. We have the floating chlorinator and always keep tablets in it but still cannot seem to keep the chlorine in the pool. I think it is a problem with the cya, but we have already added the recommended amount, which does not read on the test strip. We have not swam in the pool yet so no water has splashed out or been drained since adding the cya. Any suggestions?
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