Question about Hayward EC-40 DE Pool Filter with pump

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I have the Hayward EC-40 Filter, my problem is the DE is getting into the pool. What would cause this?

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Broken/torn grid, o-ring bad in the housing by the grid assembly or grids not in manifold properly. Backwash, open the filter, remove and inspect the grids (the plastic bases too).

Posted on Jun 06, 2010

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1 Answer

3620 hayward de filter earthe coming back to pool


take filter apart examine all the cloth elements if torn or ripped replace and that should fix your problem

Jun 23, 2014 | Hayward EC-40 DE Pool Filter with pump

1 Answer

I found a bowl shapped button with cloth attached on one side inside my Heyward DE filter, when I was cleaning. It says EC-1272, Any idea what it is. Is it a filter part?


I had the same problem. Sent email to Hayward and here's the response I received:
It sounds like the check valve has come apart. This prevents the D.E from leaking back to your pool after the equipment shuts off. You can go to www.haywardnet.com/locator to find a list of dealers who can assist you with getting a replacement. Thank you, Ben

Jul 18, 2011 | Hayward EC-40 DE Pool Filter with pump

1 Answer

My Haward perflex EC-40 filter allows DE and dirt back into the pool whenever we start it up or vacuum.


There's a hole in the filter allowing DE and dirt to pass. Find hole and repair or buy new. I just bought new grids off of ebay, great deal. I payed $112 for complete set by Unicel and saved over $100 My filter is a Hayward DE4820

Jul 08, 2011 | Hayward EC-40 DE Pool Filter with pump

1 Answer

I bought a used Hayward Perflex Extended Cycle DE Filter Model#EC45 I have to keep backwashing it, it flows heavily back in the return but it only flows good for a little while. What do I need to do? It...


Here is a link to the hayward manual. Be sure to follow the pre-coating insturctions carefully.
Use only the swimming pool grades of
diatomite, such as:
CELATOM . . . . . . . . . . . Eagle-Picher Industries, Inc.
AQUA-CEL . . . . . . . . . . Johns-Manville Products Corporation
DICALITE 4200 . . . . . . . Grefco, Inc.
WITCO . . . . . . . . . . . . . Witco Corporation
The EC-50 filter uses a 5 lb. (2.3 kgs.) charge of diatomite (D.E.)

Here is a link to the hayward manual for a EC-50 I think its almost the same as the EC-45
http://www.haywardnet.com/products/manuals/pdfs/manual10.pdf

Jul 01, 2010 | Hayward EC-40 DE Pool Filter with pump

1 Answer

Water leaking out the top


Here is a copy of the users manual for these pool filters. It has detailed illustrations about how the filter should be put together.

http://www.backyardcitypools.com/images/hayward/perflex-system-manual.pdf

Jun 21, 2010 | Hayward EC-40 DE Pool Filter with pump

1 Answer

My DE pool filter stops working after an hour? please help


Is your pool green? This will cause the filter to plug up. When you say stops working do you mean no water flo, passing dirt or are we talking about the pump not moving water? Can you clarify this problem some?spellcheck.gif

Aug 16, 2009 | Hayward EC-40 DE Pool Filter with pump

1 Answer

EC 40 DE In Pool


That's common, it happens for about 30 seconds when you first turn the filter on. If it is happening more than that then their may be a small tear in the nylon of your fingers or a bolt and nut loose on the tubesheets.

Jul 19, 2009 | Hayward SAND FILTER, PRO SERIES

1 Answer

Hayward pump wont prime. air bubbles coming back into pol with water and de


You have a leak, if DE is getting back in pool your filter is either dirty and needs to be taken apart and throughly cleaned, or you have a ripe in one of the DE cells. The pump not priming is a leak somewhere before where water enters pump. Could be a bad o-ring in a valve. Hard to tell what is is without troubleshooting, piece by piece. I would start with cleaning Filter first.

Jun 17, 2009 | Hayward EC-40 DE Pool Filter with pump

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