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Thread: DE in Above Ground Pool

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    Join Date
    Sep 2007
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    Tinley Park, Illinois
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    74

    DE in Above Ground Pool

    Hi Everyone. We just opened our 24 feet above ground pool a few weeks ago. The water tested very well but for some reason, I am getting DE back into my pool. We've been vacuuming it up with the automatic pool cleaner and it's been consistently picking up the DE. This morning, I see DE in the pool bottom again and the pool is cloudy due to the DE.

    I'm hoping there is an easy and cheap fix. This will be the last season for our pool. We've had it for 13 pool seasons and the kids are grown and in college. After this season, we are taking out the pool and deck. I want to enjoy one more swim season but don't want to spend a lot of money replacing the DE filter. Any suggestions or steps to try to see if we can resolve this?

    Any help would be greatly appreciated. Thanks so much in advance.
    24 ft. round Artesian above-ground pool
    54" depth
    15,000 gallons
    Hayward 1.5 HP EC45 DE Filter
    Hayward H150 Gas Heater

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    Richard320's Avatar
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    Jan 2010
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    San Dimas, CA (LA County)
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    Re: DE in Above Ground Pool

    Is there any chance you connected the filter backwards when you reinstalled everything this season?

    If no, then the next step is to open up the filter and inspect the grids. Even a 1/4" tear on only one grid will send piles of DE back into the pool.

    If you find a small tear, it can be fixed. Not an ideal solution, but it works. My brother-in-law has stitched up a tear with dental floss and then smeared the whole area with silicon gasket goo to seal it. It reduces the filter area by a square inch, but it saved the expense of a new grid.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Sep 2007
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    Tinley Park, Illinois
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    Re: DE in Above Ground Pool

    Hi Richard,

    My husband installs the filter every year. I don't think he installed it backwards but you never know. LOL! I will definitely have him check.

    Originally I thought I had algae. I shocked the pool yesterday morning and just checked the levels. They are still at shock levels.

    Here are the results:

    FC = 15.5
    CC = .5
    TC = 15
    PH = 7.2
    CYA = 50
    Temperature = 75

    I think my water is good. When we take the bug out of the pool after a couple of hours to clean the bag, it's full of DE so I'm pretty sure it's DE and not algae. He's off of work on Thursday, so I will have him check whether the filter was installed backwards. If not, then I will have him inspect the grids. Hopefully if that is it, it will be an easy fix. I did search the internet and they mentioned gaskets and o-rings and stuff and I was getting all confused .

    Thank you! I will post our findings hopefully soon.
    24 ft. round Artesian above-ground pool
    54" depth
    15,000 gallons
    Hayward 1.5 HP EC45 DE Filter
    Hayward H150 Gas Heater

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    Sep 2007
    Location
    Tinley Park, Illinois
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    74

    Re: DE in Above Ground Pool

    I'm back. My husband checked and the filter is installed correctly. He did not take the filter apart because he couldn't find the plugs to plug up the pool to take the filter apart. We're going to have to go to the pool store to buy the plugs to do this before taking the filter apart. By the way, our filter is an old Hayward filter, model EC45. It has the fingers, not the grid panels. Do you know if this can be fixed without having to replace all the fingers? Could there possibly be another reason why the DE is coming back into the pool? Thanks!
    24 ft. round Artesian above-ground pool
    54" depth
    15,000 gallons
    Hayward 1.5 HP EC45 DE Filter
    Hayward H150 Gas Heater

  5. Back To Top    #5
    Richard320's Avatar
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    Jan 2010
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    San Dimas, CA (LA County)
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    Re: DE in Above Ground Pool

    I'm not familiar with the innards of those bump-type filters.

    You could always try rubberbanding a sock around the return jet. If it fills up with DE, you'll know it's coming from within the filter.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Join Date
    Sep 2007
    Location
    Tinley Park, Illinois
    Posts
    74

    Re: DE in Above Ground Pool

    Is the return jet "the eye"? Sorry, I don't know all the terminologies. Thanks so much for your help!
    24 ft. round Artesian above-ground pool
    54" depth
    15,000 gallons
    Hayward 1.5 HP EC45 DE Filter
    Hayward H150 Gas Heater

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    Richard320's Avatar
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    Jan 2010
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    San Dimas, CA (LA County)
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    18,768

    Re: DE in Above Ground Pool

    Quote Originally Posted by tj_shopper View Post
    Is the return jet "the eye"? Sorry, I don't know all the terminologies. Thanks so much for your help!
    Yeah. Where the water comes into the pool after filtering. If it sticks out enough, you can rubber band a sock (no holes!) over it and catch anything passing through the filter.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Join Date
    May 2012
    Location
    Montville NJ
    Posts
    545

    Re: DE in Above Ground Pool

    Quote Originally Posted by Richard320 View Post
    I'm not familiar with the innards of those bump-type filters.

    You could always try rubberbanding a sock around the return jet. If it fills up with DE, you'll know it's coming from within the filter.
    They have "fingers" that hang down from the top - tubes covered with "socks" that work the same as grids. Only problem is they are bunched together more than grids, so its harder to see if there is a tear.

    To the OP, pull out the guts of the filter, and hose off all the fingers, and look to see if any have a hole/tear, also feel to see if any are cracked. If so, you can buy a replacement. They unscrew from the top (about a half turn unlocks them). I have never tried patching one, but unlike a grid, a single finger is pretty cheap.

    -dave
    27' Round ABG (17,000 gal) - +/- 11 hours of full sun per day
    Hard plumbed Hayward Perflex EC-40 DE filter w/ 1 HP pump (Got a new one June 2015)
    Filered 4 hours per day (on a timer)
    Pentair Aqualuminator - now working - and now dead once again, this time for good.
    Zodiac Wahoo

  9. Back To Top    #9

    Join Date
    Sep 2007
    Location
    Tinley Park, Illinois
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    Re: DE in Above Ground Pool

    So we ended up replacing the filter. There were too many broken fingers. I guess 13 years was enough for this filter and we got our money's worth. LOL. Everything is running great now but we have to get our numbers up and get rid of algae. I have another small problem now but will start a different post. Thanks.
    24 ft. round Artesian above-ground pool
    54" depth
    15,000 gallons
    Hayward 1.5 HP EC45 DE Filter
    Hayward H150 Gas Heater

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