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Hello everyone, My roommate has a old Hayward DE3620 pool filter (about 9 years old). Whenever there is any kind of pressure built up from filtering it starts leaking pretty badly from the top assembly where the manual air relief valve is (after a backwash it does not leak for a bit until the...

Hello everyone, I just cleaned some pool filters that hadn't been cleaned in over 5 years with the help of this forum. That post was here: http://www.troublefreepool.com/need-information-about-maintenance-of-pool-filter-please-t26969.html Now that the filters are all cleaned up and in working...

Hello everyone, My roommates have an in ground Doughboy swimming pool that is always neglected. I asked them if they ever clean out the pool filter and they said no. It has been years since the filter was cleaned (at least 5 years). The filter is a Hayward Pro Grid D.E. Filter however I am not...