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Thread: saltwater system filter and sand filter on intex pool

  1. Back To Top    #1

    Join Date
    Jul 2016
    boston, ma

    saltwater system filter and sand filter on intex pool

    Hi. I have a 16x48 intex pool, that came with a saltwater system(with a filter attached). I also have an intex sand filter that I hooked up to the pool and saltwater system. Everything seems to be working fine, but here are some things that I am noticing throughout the day-
    1. The hose that runs from the skimmer to the sand filter basket is sucked in all of the time- I loosen the small "plug" at the top, a bunch of air expels, I tighten it back up, it happens again shortly after. If I leave the "plug" loosened, water comes out.
    2. The big sand filter gets indented as well.
    3. The water isn't continually going back into the pool- it is slow at times, fast at times, and nothing at times.
    4. All of my levels are fine- per pool store- but chlorine shows 0, even the day after I add liquid shock.

    I would appreciate any and all help!!! THANKS!!

  2. Back To Top    #2

    Join Date
    Sep 2015
    Rancho Cucamonga, CA

    Re: saltwater system filter and sand filter on intex pool

    Can you post a picture or describe how you have the SWG and filter(s) connected?
    Intex Ultra Frame AG Round 16'x48", 5050 gallons
    Intex 28651EG Sand Filter Pump (had SWG, still have salt in water)
    Intex Auto Pool Cleaner, Intex Wall Mount Skimmer, Intex LED Pool Sprayer

  3. Back To Top    #3
    Piolin's Avatar
    Join Date
    Sep 2010
    Miami, FL

    Re: saltwater system filter and sand filter on intex pool

    I think you have an air leak, could you take a look all around and see if something is dripping when the pump is off?

    Starting day 5/25/2015 INTEX AGP 24'x12'x54" 8,400 gal, with salt and borax, INTEX 3,000 GPH pump with 16"sand filter, WM Hayward Skimmer, Intex SWG CG-28669, 1 1/2" hard plumbed PVC, Lil' Shark Vacuum With Leaf Canister, TF100 test kit, speed stir, K-1766 Taylor salt test
    8,400 gal Intex, 3K GPH pump, 16" sand filter, SWG CG-28669, TF100 test kit, speed stir, K-1766 Taylor salt test.

    The corner stone of TFP
    Pool School - Chlorine / CYA Chart

  4. Back To Top    #4

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: saltwater system filter and sand filter on intex pool

    You have a suction side air leak. Read the Article about it in Pool School.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  5. Back To Top    #5
    jmcdtucson's Avatar
    Join Date
    Jun 2014
    Tucson, AZ

    Re: saltwater system filter and sand filter on intex pool

    Welcome to TFP.

    Yup, at the least an air leak on the suction side of the pump.

    That plug is for purging air when it gets into the system. It sits on the filter basket. If everything is working properly, there should never be any air in there. Check your connections from the pool outlet to the filter basket.

    I have no idea what you mean by the big sand filter getting indented. That seems impossible as it's made out of rigid plastic.
    Picture would help

    As an additional issue, if your chlorine level is zero you have serious water quality issues. Read the Pool School articles on basic water chemistry. Stop using pool store "shock" stuff and follow the instructions for the SLAM process.

    Oh, and read the article called "read before you post" so you can put the information in your signature that we need to help you.
    Good luck!
    Intex 12'x24'x52"
    8,403 gallons
    Intex SF60110 2450 GPH Sand Filter
    Intex CS8110 SWG
    Aquabot AJET121I Pool Rover S20-40

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