Question about Hayward EC75 HAYWARD PERFLEX FILTER SYSTEM W/1HP PUMP

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Whenever I bump the filter I get blow back of DE. I've checked the tube covers and don't any cracks in them. I'm wondering how to check to find which one of the possible tubes might be bad or do I need to replace all of them?

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jharwell668
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SOURCE: I replaced the diaphragm gasket

There are several things to check when correcting DE leaks in these pool filters. If you have already replaced the diaphragm gasket and tightened the screws, check for an opening or tear in one or more Flex-Tubes. Replace them one or all as necessary. Make sure that you have the proper amount of DE and that you don't have holes in your grids.

Posted on Mar 17, 2011

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1 Answer

I replaced the diaphragm gasket and when I bump the filter some DE still shoots out into the pool. all the tube sheet hex screws are all tight. Paul


There are several things to check when correcting DE leaks in these pool filters. If you have already replaced the diaphragm gasket and tightened the screws, check for an opening or tear in one or more Flex-Tubes. Replace them one or all as necessary. Make sure that you have the proper amount of DE and that you don't have holes in your grids.

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If D.E. is returning to the pool, it's usually because you have a tear in the grids or the backwash valve is not working properly and returning D.E. back to the pool.

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