Tag: "Hayward filter backwash"

Another Hayward EC40 DE Filter Discovery
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Another Hayward EC40 DE Filter Discovery

Okay, if you’ve read any of the other posts on this blog, you know that I’m working with a second hand Hayward DE EC40 Perflex pool filter. When I first got it I took it apart to see how it works. It wasn’t until I got it working that I learned that some of the […]