Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 11 of 11

Thread: can a pool raise up out of the ground

  1. Back To Top    #1
    chrlaey1's Avatar
    Join Date
    Nov 2014
    Location
    PORT SAINT LUCIE
    Posts
    14

    can a pool raise up out of the ground

    I have a salt water pool in south florida about a mile from the intercoastal and started to get algae and my salt was above 5500ppm,I was told to drain my pool or at least 2/3 of it.I found out if I do that my pool would raise up out of the ground,is this true.
    So I went and rented a trash pump and got it done.The other pool had a discharge on it and this pool did not,so I thought.
    About 20 feet away from the pump there were two 1 1/2 pvc pipes sticking out of the ground and someone said it may be for ground water and the other might be a discharge but I am not touching anything until I ask here on this forum.Here is a few pics.
    Thank's
    P.S....while i was going threw my pool pictures i think i found out what i needed to no but i am not sure about what pipes to turn on or off so i can use it if i ever have to pump it out again,you will have to enlarge the photo so you can see where they have a pump hooked up.

    IMG_20160317_144010044.jpg
    20140409_125806.jpg

  2. Back To Top    #2
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: can a pool raise up out of the ground

    If you completely drain the pool AND you have an extremely high water table, it certainly can float up out of the ground. In Port Lucie, I don't think you'll have a problem.

    As for the pipes sticking out of the ground, it's anybody's guess what those are. Are those caps glued on?
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  3. Back To Top    #3
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  4. Back To Top    #4
    chrlaey1's Avatar
    Join Date
    Nov 2014
    Location
    PORT SAINT LUCIE
    Posts
    14

    Re: can a pool raise up out of the ground

    That was something else,first time I seen that and now I'm glad I only drained half the pool,but if I ever have to do it again I would like to no which valves to shut off or turn on,I'm thinkin one of those two pipes in the ground is the discharge,there not glued and they pop right off I would ask the pool builder but he is out of business,gone.Here is a picture of the setup.
    Thanks for that video that was good
    -----------------------------------------------------------------
    IMG_20160314_122402180_HDR-picsay.jpg

  5. Back To Top    #5
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: can a pool raise up out of the ground

    They're talking about a hydrostatic valve in the bottom of the pool. If you have one, it will be hidden beneath the cover in the main drain.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  6. Back To Top    #6
    chrlaey1's Avatar
    Join Date
    Nov 2014
    Location
    PORT SAINT LUCIE
    Posts
    14

    Re: can a pool raise up out of the ground

    Quote Originally Posted by Richard320 View Post
    They're talking about a hydrostatic valve in the bottom of the pool. If you have one, it will be hidden beneath the cover in the main drain.
    thanks for that info i went and seen how it's done on you tube,what i need to no is what valves have to be opened or closed to pump out my pool ,i found out that those pipes that were sticking out of the ground is a discharge line and to backwash the filter but don't no what position the valves should be in.
    the pic above is my setup.
    thank's

  7. Back To Top    #7
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: can a pool raise up out of the ground

    Quote Originally Posted by chrlaey1 View Post
    thanks for that info i went and seen how it's done on you tube,what i need to no is what valves have to be opened or closed to pump out my pool ,i found out that those pipes that were sticking out of the ground is a discharge line and to backwash the filter but don't no what position the valves should be in.
    the pic above is my setup.
    thank's
    The intake should be set to Main Drain, which it looks like it is. The cleaner should be off. Not pictured, but probably right on the filter should be a backwash or multiport valve. Some filters - like mine - incorporate the backwash valve in it. See why we ask you to fill out your signature? Then the water will get drawn from the bottom of the pool, through the pump, and out the waste port, completely bypassing the filter. If you have a cartridge filter, you won't have a backwash valve. And if you have a DE filter, you'll probably want to remove the grids while emptying the pool. How about a fuller picture of your equipment pad?
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  8. Back To Top    #8
    Saturn94's Avatar
    Join Date
    Mar 2015
    Location
    Virginia
    Posts
    461

    Re: can a pool raise up out of the ground

    20k IG vinyl liner/Aqua Rite SWCG, T-15 cell/Hayward Pro Grid 6020 DE filter/Polaris 280 with booster pump/Hayward Superpump 1 hp/city water/pool installed March 2004

  9. Back To Top    #9
    chrlaey1's Avatar
    Join Date
    Nov 2014
    Location
    PORT SAINT LUCIE
    Posts
    14

    Re: can a pool raise up out of the ground

    Quote Originally Posted by Richard320 View Post
    The intake should be set to Main Drain, which it looks like it is. The cleaner should be off. Not pictured, but probably right on the filter should be a backwash or multiport valve. Some filters - like mine - incorporate the backwash valve in it. See why we ask you to fill out your signature? Then the water will get drawn from the bottom of the pool, through the pump, and out the waste port, completely bypassing the filter. If you have a cartridge filter, you won't have a backwash valve. And if you have a DE filter, you'll probably want to remove the grids while emptying the pool. How about a fuller picture of your equipment pad?
    --------------------------
    i do have a cartridge filter,my last pool had a backwash valve never had this type,sorry it took so long it wasn't taking my pictures.

    .thank's

  10. Back To Top    #10
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: can a pool raise up out of the ground

    I don't see any valve for draining. It's still possible, but it will either a) create a huge mess or b) involve plumbing fabrication.

    You could undo the union at the pump or at the SWG and screw on a new piece with a backwash hose, or thread a nipple into the filter drain port and connect a hose to that.

    All of those options seem like a lot of work and expense that could be avoided by renting a submersible pump for a day.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  11. Back To Top    #11
    chrlaey1's Avatar
    Join Date
    Nov 2014
    Location
    PORT SAINT LUCIE
    Posts
    14

    Re: can a pool raise up out of the ground

    Quote Originally Posted by Richard320 View Post
    I don't see any valve for draining. It's still possible, but it will either a) create a huge mess or b) involve plumbing fabrication.

    You could undo the union at the pump or at the SWG and screw on a new piece with a backwash hose, or thread a nipple into the filter drain port and connect a hose to that.

    All of those options seem like a lot of work and expense that could be avoided by renting a submersible pump for a day.
    yep thats what i had to do last week but i still think the the two pipes are connected to the system because i popped off both caps where i found them sticking out of the ground and i believe one was a sump pump for ground water and the other was a discharge line,i just got to figure out what valves are which.
    thanks for your help

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •