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Thread: Possible sand filter problem.

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    Join Date
    Sep 2007
    Location
    Mobile Alabama
    Posts
    33

    Possible sand filter problem.

    Hey guy's

    I added cya acid to my skimmer as directed....some of the granules came out of the returns to the pool. I double checked the valve and made sure it was on filter.

    My pool has been a little cloudy. What do I need to look at in the filter? The pool is 6 year old. Thanks
    16x36 vinyl
    300 lb sta-rite sand filter
    3/4 hp sta-rite pump
    Aquarite SWG

  2. Back To Top    #2

    Re: Possible sand filter problem.

    If your valve is set to recirculate it is bypassing the filter, if I remember correctly. So you should see the CYA come back into the pool. You want the valve set on filter so the CYA enters the filter and dissolves from there.

    Quote Originally Posted by stanton
    Hey guy's

    I added cya acid to my skimmer as directed....some of the granules came out of the returns to the pool. I double checked the valve and made sure it was on recirculate.

    My pool has been a little cloudy. What do I need to look at in the filter? The pool is 6 year old. Thanks

  3. Back To Top    #3

    Join Date
    Sep 2007
    Location
    Mobile Alabama
    Posts
    33

    Re: Possible sand filter problem.

    That was my typing error.... It was set on filter. I edited the post for less confusion. Thanks
    16x36 vinyl
    300 lb sta-rite sand filter
    3/4 hp sta-rite pump
    Aquarite SWG

  4. Back To Top    #4
    launboy's Avatar
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    Jun 2008
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    S.E. Wisconsin
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    582

    Re: Possible sand filter problem.

    You might have channeling of your sand. That would explain the coudy water(it's not being filtered, just passing though) and the CYA coming back into the pool. Is your pressure lower now then it was when the water wasn't coudy?

    There are two solutions to this... One is to GENTLY tap on the filter tank,(pump on) with a rubber mallet, or your fist. Gently, is the key with that one. The other option is to take the top off the filter(pump off) and push a running hose into the sand in many different places, this should colapse the channels.

    HTH,
    Adam
    18' x 42" Intex Easyset Pool, with 16' x 52" deep end in the middle. Approx. 5500 Gal.
    Hayward Power-Flo LX 1 HP, 100# Jacuzzi Brand Sand Filter(Piped underground so it looks nice) 8)
    3 - 2' x 20' Solar Pool Heater Panels(roof mounted)
    Goin' on 9 summers...NOBODY thought it would last this long.
    Buried Portable Spa sharing pumps and water with pool (Almost complete project)

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    Join Date
    Sep 2007
    Location
    Mobile Alabama
    Posts
    33

    Re: Possible sand filter problem.

    After reading alot last night I decided to just pull the valve assembly and take a look. I was suprised at the **** that was piled up in the on top of the sand.

    I'm hoping I found the problem. The sand around the edge was compacted and the sand around the center pipe was normal. I'm hoping that was the culprit. After about a hour of breakiing up the sand with a water hose and pvc pipe it is all loose now. The stuff that washed out was amazing.

    How much sand should be in the filter itself? My best guess would be 60% full or just over half. I counldn't find a recommended lbs of sand on my filter. Thanks for all the provided info.
    16x36 vinyl
    300 lb sta-rite sand filter
    3/4 hp sta-rite pump
    Aquarite SWG

  6. Back To Top    #6
    launboy's Avatar
    Join Date
    Jun 2008
    Location
    S.E. Wisconsin
    Posts
    582

    Re: Possible sand filter problem.

    I really couldn't tell you how full it should be. Ours is about 3/4 full of sand as of this spring when we replaced it, If you post the model of your filter, someone might be able to tell you how many lbs of sand you need.

    HTH,
    Adam
    18' x 42" Intex Easyset Pool, with 16' x 52" deep end in the middle. Approx. 5500 Gal.
    Hayward Power-Flo LX 1 HP, 100# Jacuzzi Brand Sand Filter(Piped underground so it looks nice) 8)
    3 - 2' x 20' Solar Pool Heater Panels(roof mounted)
    Goin' on 9 summers...NOBODY thought it would last this long.
    Buried Portable Spa sharing pumps and water with pool (Almost complete project)

  7. Back To Top    #7

    Join Date
    Sep 2007
    Location
    Mobile Alabama
    Posts
    33

    Re: Possible sand filter problem.

    I'll look on the filter housing again for stamped info. I know there wasn't a sticker on it. My pool is 6 years old and I have never looked at the filter. Would it be a good idea just to go ahead and replace the sand anyway? What kind of sand would I need? Thanks again.
    16x36 vinyl
    300 lb sta-rite sand filter
    3/4 hp sta-rite pump
    Aquarite SWG

  8. Back To Top    #8
    launboy's Avatar
    Join Date
    Jun 2008
    Location
    S.E. Wisconsin
    Posts
    582

    Re: Possible sand filter problem.

    I don't know how often you should replace your filter sand, I want to say every 4 years but I'm not sure. If you do go ahead and replace it, you wand Silica sand, also known as filter sand. Just go to the pool store and tell them you need (x amount) lbs. of sand, they will know what you mean.

    HTH,
    Adam
    18' x 42" Intex Easyset Pool, with 16' x 52" deep end in the middle. Approx. 5500 Gal.
    Hayward Power-Flo LX 1 HP, 100# Jacuzzi Brand Sand Filter(Piped underground so it looks nice) 8)
    3 - 2' x 20' Solar Pool Heater Panels(roof mounted)
    Goin' on 9 summers...NOBODY thought it would last this long.
    Buried Portable Spa sharing pumps and water with pool (Almost complete project)

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