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EC 40 DE In Pool

Boadcasting small amount of DE into pool when filter starts
Hayward EC40

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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.

Posted on Sep 04, 2009

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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

How to backwash a pentair de filter


turn off unit turn multiport to back wash when water comes out clear or in a couple minutes then turn off then rinse for 30 seconds then turn off then put in filter mode turn on and add recommended amount of DE into skimmer

Nov 10, 2013 | 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 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.

Oct 03, 2010 | 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

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


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).

Jun 05, 2010 | Hayward EC-40 DE Pool Filter with pump

1 Answer

C clip is broke / now how do I put it back togather


There are two "C" clips on a Hayward EC40. Both on each side of the tube sheets. Attach the clips, put the head back on by slipping the shaft up into it and secure the handle to it with the pin and nut, then pop the cover back on.

Aug 03, 2009 | Hayward EC-40 DE Pool Filter with pump

2 Answers

Hayward eC-40 pump losing pressure very fast


A better way to clean the filter tubes in the EC40 is to remove the filter tube assembly and soak it in a 5 gallon paint pail that is filled with a solution of water and a 20% muriatic acid, available at hardware and home center stores. Be very careful handling the muriatic acid. Don't splash it around.

Mix it in a 1-to-1 ratio with water and soak the assembly for at least 8 hours. Keep the soaking pail out of the reach of kids and animals.

Remove the assembly, properly dispose of the acid mix and refill the pail with clean water. Soak again for 3 to 4 hours, then reassemble your filter.

Some pool guys say it isn't necessary to soak the tubes in clean water because the muriatic acid will not harm the pool water and will reduce the pH if it's too high. I've always soaked them to be safe.

This is a link to the Hayward manual that describes the process:
www.haywardnet.com/products/Manuals/pdfs/manual9.pdf

Jun 25, 2009 | Hayward EC-40 DE Pool Filter with pump

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