12,000 gallon pool with a tr-60 pentair filter. We replaced the sand because it was 10years old and was not filtering properly. We put in the recommended 325lbs. With a 1 hp pump.
Re: Sand in my backwash after filter sand change out...
12,000 gallon pool with a tr-60 pentair filter. We replaced the sand because it was 10years old and was not filtering properly. We put in the recommended 325lbs. With a 1 hp pump.
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