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Thread: DE & Dirt back in pool

  1. #1
    Join Date
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    Question DE & Dirt back in pool

    Hi~ I hope someone can help me. I have a Hayward DE filter (3 years old) & it seems that a little DE is getting into the pool along with debris that I have vacumned. Last night I vacuumed the water & the pool was free of dirt. My pump came on an hour later & ran for 6 hours. This morning there is dirt back in the middle of the pool. I had the filter checked before hooking it up & was told the "fingers" were fine. What could be wrong??

  2. #2
    Join Date
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    Default Re: DE & Dirt back in pool

    Your pump is likely way too powerful for your filter. What brand/HP is your pump, and what size filter are you using? What kind of pool do you have, and how many gallons is your pool?

    I'm having a similar problem, and so is someone else here in the forum.

  3. #3
    duraleigh Guest

    Default Re: DE & Dirt back in pool

    I'll bet you have a filter not working properly. A normally operating filter will not return anything but clear water back to your pool. The filter must be disassembled and the "leak" found.

  4. #4
    Join Date
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    Default Re: DE & Dirt back in pool

    Hayward Perflex 1 1/2 HP~ I have a 24ft Above Ground (16000 gallons). I already had it checked & the pool store said it was fine. Maybe I need to go somewhere else. Thanks for any info

  5. #5
    duraleigh Guest

    Default Re: DE & Dirt back in pool

    Confirm that the dirt is coming from the returns. Put something over the returns very fine like panty hose to catch anything. If that's the source, your filter is not working properly.

  6. #6
    matt4x4 is offline Lifetime Member Verb Herder matt4x4 2 stars matt4x4 2 stars
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    Default Re: DE & Dirt back in pool

    Number ONE mistake (can't even call it a mistake though) people make with cleaning their pool is......
    They vacuum too fast, unless you move your vac head about 1" per 3-5 seconds, you WILL end up with a "new" pile of dirt, actually it's an OLD pile of dirt.
    When you vac your pool, you stir up the settled debris, this debris mixes in the surrounding water and "DISAPPEARS", but unbeknownst to you, it's not getting sucked up and filtered. Once you're done, you sit back and say to yourself "WOW, what a clean pool!", what you don't know is that there is a ton of dirt currently suspended in the water, but the particles are so small you can't see it until it settles in bunches - voila - your dirty pool the next day.
    Nothing you can do about it other that go REALLY slow, and that will extend your vacuuming from 1 hour to 5 hours - your choice!

  7. #7
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    Default Re: DE & Dirt back in pool

    I recenly had a DE back into the pool problem. I just watched the return very closely, there was no mistaking the DE coming back into the pool from the return. Turned out to be a hole in one of the grids and this was a brand new hayward DE 60 filter. I had to totally dismantle the filter to find it though, it wasn't easy to spot until I took it all apart. Also try and watch the return right as you turn on the pump as mine usually stopped after 5-10 seconds.

    You mentioned 1 1/2 HP pump but which hayward filter do you have ? It's probably oversized just like mine is and you are probably exceeding the flow rate. I am going to change impellers to reduce flow rate. Here are the general culprits for DE back into the pool in no particular order

    1) hole in fabric covering grids
    2) crack in manifold somewhere
    3) pump oversized
    4) check the fabric around the air relief valve, make sure it's tight and without holes.
    5) faulty multiport valve not seating properly, try moving the handle around and see if it helps (while pump is off)
    6) check the outlet o-ring

    good luck

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