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Thread: Intex 635T reduced pressure and marble sounding?

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    Intex 635T reduced pressure and marble sounding?

    Hello all, had my pool up 3 months and lately I've been getting algae and low pressure out the return. Noticed some spots and streaks on bottom. Been adding 64 Oz of bleach to NY 5k gallon pool daily.

    Pull out filter rinsed, pressure low and had signs of algae so went and bought new filter. A little better and next day very low flow. It was good when the filter was new, lately it won't even swirl the skimmer basket water.

    Ideas or warranty? I want to upgrade but was hoping to wait til next year.
    16x48 Intex Ultra
    Hayward Skimmer
    TF-100 test kit

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    Charlie_R's Avatar
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    Re: Intex 635T reduced pressure and marble sounding?

    Algae will fill your filter quite rapidly. The only indication with Intex pump/filter units is low flow. When you notice the flow is reducing, clean your cartridge. Best to have several on hand, and keep one or two of them in your soak solution. That way you can do a quick change, and then rinse out the old anytime before it dries out.
    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: Intex 635T reduced pressure and marble sounding?

    What do you mean by 'marble sounding' in your subject line? Does the pump sound different than when it was new?
    18' x 48" ring top pool (Summer Escapes); 5500 gallons; set up June - October, stored during winter; Intex 2500 gph pump (B size cartridge filter) Hayward 21" sand filter + 1.5 hp single speed Powerflo Matrix pump (upgrade October 2016) *** K-2006 test kit, refills from tftestkits

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    Re: Intex 635T reduced pressure and marble sounding?

    What's the soal solution? No sounds about same as new I guess
    16x48 Intex Ultra
    Hayward Skimmer
    TF-100 test kit

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    Re: Intex 635T reduced pressure and marble sounding?

    I believe what Charlie is getting at is when you pull a cartridge out of your filter unit, wash it out immediately. Once the crud dries it takes alot longer to clean the filter out with a hose. Soaking the filter in TSP then washing them out will make them about as good as new.
    Randy H.

    Intex 18' X 48"
    G.A.M.E. Sandpro 75 Sand Filter (Single Speed 3/4 HP, 75 lbs sand, 2650 GPH, 7-way valve)

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    Re: Intex 635T reduced pressure and marble sounding?

    Nice, yea I always rinse immediately and then return. Didn't know of about the soaking method.
    16x48 Intex Ultra
    Hayward Skimmer
    TF-100 test kit

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    Charlie_R's Avatar
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    Re: Intex 635T reduced pressure and marble sounding?

    Unicel filters come with cleaning instructions, and I suspect Filbur does as well.

    Are you using the Intex branded carts? You might look into either Unicel or Filbur for your size, they do a much better job. Somewhere on this forum there is a comparison thread that shows the difference.
    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: Intex 635T reduced pressure and marble sounding?

    I saw a thread on those as well being washable and longer lasting. I will look into it, I hope reduced flow is due to cartridge. Sand upgrade next year hopefully.
    16x48 Intex Ultra
    Hayward Skimmer
    TF-100 test kit

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