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Swimming Pool Problem
I have a 25,000 in ground with a Hayward EC65 diatomaceous earth filter. I
have been in my house for 13 years. The filter has been here all along and has always been very good. This year, I am getting a lot of earth going into my pool. There are large clumps of earth in the deep end mainly, not much, if any in the shallow. I had someone come over to look at it, and he thought that the earth was entering the pool through the returns and it was due to the age of the filter and that I should get a new filter. Maybe this is true, but I am 98% sure the earth is getting in through the skimmer. The largest clumps on the floor are near the skimmer. I have only one skimmer and 2 returns. The return in the deep end is opposite the skimmer. It is not impossible that the earth is coming out of the return and shooting across the pool and landing under the skimmer, but I really don't think so. The shallow end, which has the other return, has very little, if any earth on it. I figure, if the earth is entering the pool through the returns, it should be under that one too, which it is not. Also, I have seen the earth rise up out of the skimmer and enter the pool. So, let's assume I'm right. Why would that happen after so many years? Is it normal for the water to reverse a little at night and bring the earth with it? My filter is supposed to have a check valve. Wouldn't that prevent this from happening if it was working properly? Could it be that? Thank you for your time, and if anyone can give me suggestions, it would be appreciated. -- Dave Schwartz Commack, NY |
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