Question about Hayward EC65 Extended Cycle DE In Ground Pool Filter System with Pump

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Appears that the silicone sand is being thrown back into the pool from the return jets? I assume something gave out since the filter is old. What part is needed to replace on the EC65 DE Filter?

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Is this a DE filter or a sand filter: Check all internal parts of your DE filter for holes or breaks. There is a hose inside that is suppose to eliminate air locks ... it may be submerged. Same applies to sand ... find the broken lateral or air lock preventing hose.

If you have a DE filter and sand is coming into the pool ... there is definitely a hole returning sand that bathers introduced into the pool ...

You are using DE in your DE filter, right??? not sand ... right???

Posted on Aug 04, 2010

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Posted on Jan 02, 2017

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Related Questions:

1 Answer

Sand filter seems to be working fine but a couple of days after I backwash I notice sand in the bottom of pool. I assume it is coming from filter. What can I do to fix this.


Vacuum it up. This fine sand will return to the sand filter and become trapped. Normal operation for a sand filter. Consider an automatic pool sweep, like Polaris. That will take this "problem" off your mind.

May 20, 2017 | Washing Machines

2 Answers

I have 7 year old Hayward ProSeries, S-244S, H/R Sand filter. I've notice that when I vacuum the pool, dirty water returns to the pool. I've backwashed and the spider gasket is fine. No sa


sand filters only have limited filtration. If the dirt is very fine such as dead algae, it will go right through the filter. Use a clarifier to help give the filter finer filtration. Do not vacuum until you can see what you are doing, then vacuum on 'waste'

Sep 19, 2012 | Hayward SAND FILTER, PRO SERIES

1 Answer

I just finished cleaning my pool when I noticed debris around the area where my inground pool jets are. So I backwashed and vacuum that area. However, once in filter mode I noticed sand at the bottom of...


When sand comes back from the filter, that means that the device inside the filter that keeps the sand in has broken. In order to replace the item, all of the sand must be removed and the tubes must be removed and new ones installed. Go to your local pool supply house with your filter information and they can show you how to remove your old units and they will sell you new ones. You only have to replace the ones that are broken.

Gary

Aug 12, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

This spring we changed the sand in our filter. Sand was purchase from the same location we purchased our pool. When i vaccuum the pool the dirty water is sent out the return back into the pool and the...


I don't like sand filters very much but that still should not be happening. If you have a multiport valve on your filter, take it apart and see if the spider gasket is in good condition and if it's secure. Sometimes if a spider gasket swells it can push its way out of the grooves where it is fastened. Also, if you have ever turned the multiport selector know without fully depressing it, if could have pulled a part of the gasket out and it's now letting water return to the pool without being filtered at all.

New sand should not be causing this problem, check your multiport and see if that is the problem.

Hope this helps

Jul 30, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

I have an Hayward Pro Series S244T filter and I have had problems with sand blowing back into pool - the filter is only 2 years old


When sand returns to the pool, there is a hole in either the media or the sieve that is supposed to keep the sand in the filter.
All of the sand must come out of the filter, the sieve at the bottom (outlet of the filter) must be removed and any broken segments must be replaced.
The sand is then returned.
Gary

Apr 27, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

Pentair sm2-pp3 valve, triton II filter. Upon backwash...sand is blown into pool. through air jets. System is two years old


Sounds like you have a problem inside the filter. This will probally be something you will want to get a pool guy for. If the filter is only two years old you should check for warrenty on the filter. Sorry for the bad news and good luck.

Mar 24, 2010 | Pool & Spa

1 Answer

When vaccum dirt, comes back in thru jets. \have a hayward filter


Do you back-wash your filter regularly?

Sound like dirt build up.

Jun 29, 2009 | Hayward SAND FILTER, PRO SERIES

1 Answer

Sand Dollar Filter


If sand is returning to the pool, the most common cause is the laterals, or the internal pipe is not connected to the valve properly.

If you have laterals with "slots" on one side and solid plastic on the other side, the slots have to be installed so that the slots face downward, toward the bottom of tank. If one, or more, are facing upwards, you are pulling sand right into the pool. If you have the newer laterals, with slots on all four sides, one, or more, may not be tightly in place.

If you have too much sand in the filter, that could cause this issue also. Pentair recommends using the #20 Standard Silica Sand in the filters.

Hope this helps!

Jun 13, 2009 | Pentair Sand Dollar 19" Filter with 1 Hp...

3 Answers

There's sand in my pool!


I have had this issue with several clients and before worrying, you might have had sand being drawn back into pool lines during winterization. this happens when you blow out lines, plug holes, but keeping it pressurized. if it keeps happening check draw fins on bottom of filter.

Mar 01, 2009 | Hayward SAND FILTER, PRO SERIES

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