Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 9 of 9

Thread: tank overflowing on infinty pool

  1. Back To Top    #1

    tank overflowing on infinty pool

    We are having a new infinity pool installed. However, at the moment there seems to be a problem with the water overflowing out of the big tank.
    There is a big blue tank that is about 1.5m wide x 1m tall that has a ball valve in it like in a toilet.
    Then there is the pump and a smaller red filter, which I assume is the sand filter.

    As soon as you fill the system up with too much water, the water just starts running out of the overflow valve from the blue tank.
    I have left it on circulation for the moment.

    Do you have nay ideas what I should do?
    What does the blue tank do, do I need to isolate this from the rest and just have it running from the red sand filter?

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: tank overflowing on infinty pool

    Welcome to TFP!

    It is difficult to tell from your description just what is happening. Typically on an infinity pool there is the main pool, a trough down at the bottom of the wall, and a tank at the same level as the trough. The trough and the tank between them need to hold enough water to handle the depth difference in the main pool when the overflow is running. To put that another way, when the overflow pump is running there still needs to be a little water in the tank, but when the pump is not running all the water the is "in transit" with the pump running has to fit in the tank.

    Meanwhile there should be an auto fill system that adds water when the tank is low on water, and there should also be an overflow system that drains off excess water so the trough does not overflow. Those two systems should be calibrated so the overflow doesn't trigger until there is a fair bit more water in the system than there is when the autofill system is running.

    I can't tell from your description if the pool was simply overfilled to begin with (no big deal), or if the autofill and overflow are both running at the same time (a problem).
    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

  3. Back To Top    #3

    Re: tank overflowing on infinty pool

    So it sounds like I need to adjust the ball valve so that it turns off the water inlet earlier and doesn't overflow?
    How can I adjust the ball valve (like in toilets) - is there a srew to adjust it with?

    What's the overflow pump? To me it looks like the autofill and overflow are on at the same time, just a tiny amount is coming out...I'll try and get a picture up of the existing setup...
    Could it also be that the big blue tank isn't quite level? Water flows to overflow before ball valve shuts off?

  4. Back To Top    #4

    Re: tank overflowing on infinty pool

    What happens is that I change the valve in the 1st picture and the blue tank immediately starts to go lower, the pool fills up and flows over the sides into the trough, but then the blue tank starts to fill up again from the water inlet, after about 5 mins, a little bit of water starts to come out of the exit pipe and keeps coming out.

    Edit: also, when someone dives into the pool and sloshes water off the negative edge, the trough catches everything but then a whole load of water comes out of the blue tank's escape pipe.



    Uploaded with ImageShack.us




  5. Back To Top    #5

    Re: tank overflowing on infinty pool

    anyone?

  6. Back To Top    #6
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: tank overflowing on infinty pool

    It sounds like either the float valve is set way too high or it's in the wrong place. Can you post a pic of the valve?
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  7. Back To Top    #7

    Re: tank overflowing on infinty pool

    Quote Originally Posted by Bama Rambler
    It sounds like either the float valve is set way too high or it's in the wrong place. Can you post a pic of the valve?
    In the 2nd picture, it shows the exit pipe on the right top of blue tank.
    The inlet valve is on the left hand side at same height.
    Do you mean the actual ball float on the inside of the blue tank?

  8. Back To Top    #8
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: tank overflowing on infinty pool

    Yes, the actual float valve?
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  9. Back To Top    #9
    frogabog's Avatar
    Join Date
    Jul 2010
    Location
    Portland, Oregon
    Posts
    1,578

    Re: tank overflowing on infinty pool

    By the way... you don't get to tell us you're getting an infinity pool and only show us photos of pumps. We wanna see it all. So get crackin on some uploads so we can feel all jelly over your pool (as my 14yo says). :~}

    p.s. - you may solve your issue first. But then get crackin~!
    Where kids swim in 54 degree water, turn blue, and giggle happily cuz they got a POOL!
    Year 3 BBB -15' x 48" Intex Metal Frame - Was using (2) 1000gph Intex cartridge filters (see Full time pumping Intex). 2012, converted to 1600gph and sand filter+SWG = Sand filter love affair!
    Don't waste time and energy looking for a better value on test kits, the TF100 is the best deal around. I did the looking and spent the extra money, but you don't have to make the same mistake. Just go here: TFTestkits. I use Pool Calculator for min/max, and shocking chlorine levels.

Posting Permissions

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