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Thread: Cartridge filter comparison

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    Cartridge filter comparison

    I just wanted to show the difference between the Intex and Unicel filters. I have the 1500 GPH pump.Each filter was used for 2 weeks with the pump set to run 2 hours a day. The filter on the left is Unicel, the right is Intex. Aside from large pieces of debris, the Intex didn't catch much dirt and sand.
    http://s1284.photobucket.com/user/Vegas ... sort=9&o=7
    1) 7500 Gallon Free Form Gunite Pool / 800 Gallon Gunite Spa
    2) EasyTouch 8 Automation / IC20 Intellichlor
    3) Intelliflo VS Pump for pool and water features - Cartridge and DE Filter / 2 Speed Pentair Pump for Spa and Cartridge Filter

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    JasonLion's Avatar
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    Re: Cartridge filter comparison

    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Charlie_R's Avatar
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    Re: Cartridge filter comparison

    And people wonder why their Intex pool can't seem to clean up with the "genuine Intex" carts.......
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    Re: Cartridge filter comparison

    Pretty amazing difference. Just curious...which filter was used first?
    16'x28' Embassy Century AGP, Doughboy Liner, Doughboy Sand Filter and Pump

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    Charlie_R's Avatar
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    Re: Cartridge filter comparison

    Quote Originally Posted by vegasGMC
    Each filter was used for 2 weeks with the pump set to run 2 hours a day.
    I would say both were used equally.

    This follows what I have found when I switched to Unicel at the suggestion from PoolForum.com

    Dirt and dead algae were sent right back into the pool.

    When you physically compare the two, you can almost see your fingerprints through the Intex filter, where you can only see a shadow of your finger through the Unicel.

    While I haven't tried them yet, the Filbur are supposed to be as good as the Unicel. For Intex "B" filters, Use Unicel C-5315 or Filbur FC-3752.

    Both Unicel and Filbur have excellent interchange search functions on their respective websites.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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    schertzy82's Avatar
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    Re: Cartridge filter comparison

    Interesting, thanks for sharing. I was not even aware of those Unicel filters. I just ordered a couple of them. Can't wait to try them out. I get a lot of pollen on my floor and the Intex cartridge seems to have a hard time trapping it because it shows up again shortly after vacuuming. If these Unicel carts keep my floor cleaner, then I'll gladly pay the extra $ for them. Thanks again!
    Intex 18ft x 52in Ultra Frame Pool, hard plumbed w/skimmer and fountain
    Intex 4000 gph cartridge filter pump
    Intex SWG

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    Re: Cartridge filter comparison

    I used the Intex filter first. The Unicels are good for at least 4 years if you clean them properly and don't go into the pool covered in sun tan oil. They can be acid washed too.
    1) 7500 Gallon Free Form Gunite Pool / 800 Gallon Gunite Spa
    2) EasyTouch 8 Automation / IC20 Intellichlor
    3) Intelliflo VS Pump for pool and water features - Cartridge and DE Filter / 2 Speed Pentair Pump for Spa and Cartridge Filter

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    Join Date
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    Re: Cartridge filter comparison

    Unicell filters transformed my Intex swimming pool experience. I hardly change filters now at all and you can clean them and they are so much better built than those Intex filters.....night and day difference. Been using them for the past two years with Intex pumps..

    Bob E.

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    Re: Cartridge filter comparison

    While it does seem the finest particles make it back into my pool after vacuuming, the idea that the Intex filter catches nothing but "chunks" and comes out sparkling clean after two weeks seems unbelievable based on what mine come out looking like.

    Here's mine after 1-1/2 weeks. I put a couple nylons over it as a prefilter. Whoops; no time to resize pics, trust me it's dirty.

    I still want to try to find a filter that will catch those finest particles. I called every pool store in my area to get a Unicel and nobody had one. I ended up getting a Pleatco to try, and may order a Unicel from online.
    18'X48" Intex Easy Set, 2650 GPH Intex sand filter, Intex SWCG, Intex deluxe skimmer

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    Re: Cartridge filter comparison

    I should have mentioned that I also have a 1600gph sand filter that I use for the Hayward skimmer and for vacuuming that keeps the pool clear. I have the 1500gph cartridge pump set up to circulate water from the floor of the pool-PVC pipe going down from the old slimmer port in the wall and used the return eye that came with the Hayward skimmer.
    1) 7500 Gallon Free Form Gunite Pool / 800 Gallon Gunite Spa
    2) EasyTouch 8 Automation / IC20 Intellichlor
    3) Intelliflo VS Pump for pool and water features - Cartridge and DE Filter / 2 Speed Pentair Pump for Spa and Cartridge Filter

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    Re: Cartridge filter comparison

    Well I've had the Pleatco filter in for about 3 days. "A" style.

    The bottom looks pretty clean now, but I already got a low flow alarm from the SWG. I didn't think there was that much stuff on the bottom. Well I'll change it now that the pool is caught up and see how long I get out of a fresh filter. I sure hope I can get at least a week preferably two between filter changes. If not I'm not sure what direction to head next.

    Maybe the larger Intex pump with the "B" cartridge?
    18'X48" Intex Easy Set, 2650 GPH Intex sand filter, Intex SWCG, Intex deluxe skimmer

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    Charlie_R's Avatar
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    Re: Cartridge filter comparison

    The Kristal Clear 633 is the 2500 gph for Intex etc pools. Not too bad on performance, moves a good amount of water. When you remove as much restriction to water flow as you can, the pump section actually is fairly decent. As you probably have already figured out, the size of the Intex filters is woefully inadequate for the job they are called upon to perform. Any trouble with your water, and the tiny filter size becomes part of the problem in clearing your pool.
    15'x48" 4500 gallon Intex pool, buried 1.5 ft. Pac-Fab Dynamo 3/4 hp pump. Hayward S180T sand filter, bought used. Taylor K-2006 test kit. Rocket mass heater based wood fired pool heater.

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