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I live in Maryland and have a heat pump that has worked fairly well. I have been able to swim into October (I also have a cover). Now that the temperatures, particularly at night, are dropping the heat pump is having trouble. I want to keep swimming. I was wondering about the possibility of...

I am a new pool owner. I have a 28,000 gallon concrete pool with a salt system that was plastered a few weeks ago. The salt system has been operating for about a week. In the short time that the pool has been operating, I have not seen a Ph number below 8. I keep adding muriatic acid, but...