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Thread: Pump issue after installing new cartridges

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    Pump issue after installing new cartridges

    Hello all -
    I have a 25,000 gallon in ground pool. I have a hayward pump and a 4 cartridge hayward filter. My pool was clearing up after I opened it up and was told my filters needed replaced(which they did as they are 4 years old). I used pleatco brand filters for a replacement. I just bought this house a year ago and it's all new to me. The pool and all equipment is 4 years old.

    After installing the new filters I turned the pump on and it started making a clicking noise that it wasn't doing before. It is almost like I have too much pressure. I have a slide that is connected in on the return to the pool with a valve to direct the water. With it in the off position it is leaking water out of the slide. If I turn the slide all the way on the clicking on the pump stops.

    There is algae in the pool as I couldn't get it cleared up with the filters there before. Any ideas what's causing my issues? Thank you for your help!

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    Smykowski's Avatar
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    Re: Pump issue after installing new cartridges

    Welcome to the forum!

    Can you post some pictures? I'm not following your setup, and a picture will probably help.
    33' round, 23,000 gal AG vinyl , 1HP 2spd PowerFlo Matrix downsized with 3/4HP impeller (X2), Hayward S180T 150# sand filter (X2), Hayward H250 NG heater Pool Store year 1 - $850 for 2 months; Pool Store year 2 - $440 for 2 months, TFPC year 1 - $170 for 4 months; TFPC year 2 - $95 for 4.5 months
    The most important article on this site - The ABCs of Pool Water Chemistry

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    Re: Pump issue after installing new cartridges

    This is the intake with the valves for the skimmers and main drain going into the pump.


    This is the pump and filter system


    This is the chlorinator after the filter. It goes to the valve system that when turned turns on the slide. It also has an aux Polaris pump that runs my cleaner.

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    Re: Pump issue after installing new cartridges

    Here is a video I took of it this morning. Like I said it stops the sound when I open up the slide valve. Almost like the new filters are causing too much pressure.


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    duraleigh's Avatar
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    Re: Pump issue after installing new cartridges

    Welcome to the forum. I cant help with the equipment.

    That said, you seems to have a misconception about algae. There is no filter of any kind that will rid your pool of algae.....that is dependent on your water chemistry. Primarily having adequate chlorine in your pool to kill the algae. Once dead, your filters can then filter out the dead algae.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Pump issue after installing new cartridges

    Well I mentioned that because I had cleared everything up but when I vacuumed with the old filters it was passing straight through and back out of the return jets. It seems the new filters are working correctly, but I can't explain the water pushing out the slide or the ticking of the pump now.

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    Re: Pump issue after installing new cartridges

    Does anyone think it could possibly be an air leak in the filter system causing it? I see smaller air bubbles coming out of the return. Not sure if an air leak would cause the issue with pushing water out the slide and sound of the pump.
    .

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    Re: Pump issue after installing new cartridges

    Ok so I found my gasket in the slide valve had a hole in it. I fixed that and I'm still getting back pressure on the pump and air in the return lines. The suction side looks good with no air in the pump basket. Thoughts?

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