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Thread: DE leaks into pool; and filter clamp leaks elsewhere

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    Default DE leaks into pool; and filter clamp leaks elsewhere

    I am having this same problem, my filter is leaking at the clamp and causing the water to flow back through the skimmer into the pool. I thought about the check valve which would stop the back flow but I need the leak stopped. I tried replacing the o ring with lots of lube, but that made it worse. old o ring is back in and clamp is tight but still leaking. I am new to this so don't know much, so I have enlisted the help of a pool company (coming out today). So my questions are what could cause the leak at the clamp and approximately how much should it cost to fix?

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    Default Re: DE leaks into pool after filter turns off

    Absolutely NO idea.

    I don't know what filter you have or what what clamp you mean.

    But, I'm spinning this off into it's own thread.

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    Default Re: DE leaks into pool after filter turns off

    It's Hayward pro grid de4820 and leaks at the clamp that holds the two halves of the filter cover together, Sorry I should have given more info to you to help you better understand what I was talking about

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    Default Re: DE leaks into pool after filter turns off

    Usually leaks in that location mean:

    1. The filter was re-tightened unevenly. On many large clamps like that, you need to tap them with a rubber hammer as you tighten, so the clamp can slide and tighten evenly.
    2. The O-ring has deteriorated.
    3. The groove the O-ring was in OR the O-ring itself was not rinsed 100% clean before re-assembly.

    Waterbear can probably think of some other reasons.

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    Default Re: DE leaks into pool after filter turns off

    The manual for this filter has pretty specific requirements for closing the filter.
    12'x24' oval 7.7K gal AG vinyl pool; ; Hayward S270T sand filter; Hayward EcoStar SP3400VSP pump; hrs; K-2006; PF:16

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    Default Re: DE leaks into pool after filter turns off

    I do not have a manual for this filter. Pool was put in prior to us buying our house. I will have to look up the manual on the web and see if I can get one. Thanks for the advice guys. I am limited to the weekends to work on the filter due to the fact that my wife works during the day and I work at night and we have a 1 year old which I watch alone during the day. I have tried to fix it the past 2 weekends to no avail and my pool is looking bad. This is why I have enlisted a pool guy to help. He gives a free estimate and came by today to look at it. Said he will email an estimate to me but did tell me there would be a $60 service charge plus whatever else, which I assume will be parts and labor if I have him come back to fix the leak

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    Default Re: DE leaks into pool after filter turns off

    I think your DEX-2400-K 0-ring may be shot

    Unfortunately, Hayward stopped producing them in April of 2009. [I wrote a post on Trouble Free Pool about it here.]

    Please check the o-ring for pinches and/ or squared off edges. For your unit, you may end up having to purchase the ~new S.S. replacement kit - but, it'll be less than a new filter.

    ** I've NEVER seen the S.S. replacement -- but I'll be happy to tell you what little i know.**
    Luv & Luk, Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill libraries

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    Default Re: DE leaks into pool after filter turns off

    If you can locate an industrial O-ring house, and can take the existing O-ring in, they can make a replacement O-ring for you. I know where you'd go in Chattanooga to have it done, but I can't help you in Riverside. However, in any area with a large industrial base, there will likely be such a supplier.

    Quote Originally Posted by Lowdown View Post
    I do not have a manual for this filter.
    Hayward Pro-Grid page

    DE4820 manual
    Last edited by PoolDoc; 05-09-2012 at 09:11 PM.

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    Default Re: DE leaks into pool after filter turns off

    Thanks for the advice guys, it is much appreciated. So here's the update. The pool guy came to attempt to fix the leak, says it's the o ring like you guys suggested, so he replaced the o ring. Still leaking, he could not fix the leak with the o ring (still wanted service fee). He said it could be the clamp. If you move the clamp it always leaks at the two areas where the ends of the clamp meets. Any thoughts?

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    Default Re: DE leaks into pool after filter turns off

    Quote Originally Posted by Lowdown View Post
    Any thoughts?
    Are you handy with tools? If not, you probably will need to EITHER ignore the leak if it's small OR get a new filter, unless you have access to another pool guy with better skills.

    Giant O-ring seals are a pain. You have to make sure the O-ring is OK, the top channel is OK, the bottom channel is OK, there isn't ANY debris, that the O-ring isn't 'bunched up', that the clamp is compressing evenly, and so on.

    I read through the manual, and reading between the lines on the instructions, Hayward has had some problems with that filter. Among other things, they explicitly warn AGAINST doing exactly what I suggested doing -- tapping the clamp with a hammer. That tells me 2 things:
    1. Other people have had problems with the clamp compressing the O-ring evenly enough to get a good seal, and
    2. The clamp is plastic, and can be broken if you tap on it (especially, if you don't know the difference between "tapping" and "hammering").
    It's possible that your filter is un-repairable. But more likely, it's just balky. Those fiber type clamps will slip when new, and compress things evenly. But, when they are old and somewhat oxidized, they have a LOT more friction, and often have to be lightly tapped to get them to slide and compress evenly. Unfortunately, this is very much a "you have to know how hard to tap; I can't tell you how hard" sort of thing.

    Most very experienced service guys could do that. Most young and in-experienced service guys could not. And some old service guys never get good.

    So, you're kinda stuck. You could try a new clamp, if they are available. It might work. But, the friction MIGHT be from the filter body rather than the clamp, and then a new clamp wouldn't help much. And, of course it could STILL be a bad O-ring, or a damaged groove. The fact that the leak moves with clamp argues against that, however.

    What you NEED is a service guy good enough to either fix, or recognize (and explain) exactly why it can't be fixed. But, you haven't got that.

    Sorry.

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