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Thread: constant return leaks

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    constant return leaks

    Hi all, about 18months ago I had a return pipe leak fixed to the tune of around $500. Now after having a pressure test performed today, I am facing the same thing on the same return line but am being told that although only 1 leak can be detected at a time, more are suspected and expected on my older pool thus resulting in more expenses, so over $1000 and no assurance of proper function. Skimmer line tests fine (for now). Having the Pool company redo my RETURN lines only are quoting about $3000 but this would be going around the outside of the pool in the grass beyond the 3' deck, not the inside where the lines are now. I agree as the deck concrete extends on the inside of the "LAZY L" to the house with widths from 8ft to 20ft in some places and would look horrible and I just don't have that budget available now.

    I am contemplating re-piping myself around the outside of the pool, digging a trench and possibly having the returns come out of the ground and return ABOVE the 3ft deck till maybe next year when I will have time and funds to break up the deck and properly connect my new pipe to the proper return outlets.

    I'm just trying to figure out how to save $$ but does this make sense to anyone?

    1) It would allow me to "TAP" off to supply water to a slide that now has none.
    2) I've been reading TFP all day on pipe choices and am totally confused
    3) I've read here that equal return line lengths are desirable but I have a return at about 20' from the pad and the other 80' from the pad. what do I do?
    4) I'd be going with 2" pipe as that seems to be what's being used in most upgraded piping at the pad now although the skimmer would still have the original 1.5". is that OK, it's a big pool?

    I'm sure I'll have more questions going forward but this is what comes to mind today as I face the constantly rising expenses on the same day I decided to buy a new Pentair Supermax VS pump.

    Thanks to all that can help...or comfort. haha

    G
    Last edited by Flowerman; 05-12-2015 at 10:08 PM. Reason: to add details
    1979, 40K Gallon IG Vinyl, Laser250 sand filter, 1.5 hp Pentair SuperMax VS pump, Aqua-Rite SWG

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    Azgirl71's Avatar
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    Re: constant return leaks

    Just wanted to say hello. I don't have any answers for you but this will bump your post.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Mod Squad jblizzle's Avatar
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    Re: constant return leaks

    You can do that, returning the water above the pool, but it will cause aeration which will drive the pH up and cool the water.

    1) That is fine
    2) 2" is a safe choice, if you have multiple return lines, 1.5" is likely plenty.
    3) If you can run a loop around the pool, that would equalize things ... or just run them separately to the pad and use a 3-way valve to balance the flow.
    4) Usually you want the suction lines to be larger than the return lines. If you only have a single 1.5" suction line, then I would use 1.5" on the return lines, especially if you run to each separately.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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    Re: constant return leaks

    Quote Originally Posted by Azgirl71 View Post
    Just wanted to say hello.
    appreciated, thanks. right back at you.


    Quote Originally Posted by jblizzle View Post
    You can do that, returning the water above the pool, but it will cause aeration which will drive the pH up and cool the water.
    Thanks I didn't know that, so on one return I'll pass the pipe in the cavity under the diving board and right into the pool.

    1) great

    2), 3) & 4) Ok, so it sounds like I will go with separate 1.5" lines and a 3 way valve.

    At what depth would you recommend trenching?
    Would you recommend I add a third return while I'm at it?

    G
    1979, 40K Gallon IG Vinyl, Laser250 sand filter, 1.5 hp Pentair SuperMax VS pump, Aqua-Rite SWG

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    Re: constant return leaks

    Did you check their first fix to see if the leak is not in the same spot? What caused the first leak? Even in 30 year old PVC, there is usually a good reason it starts to leak.
    25' x 13' Roman, 12000 gal IGP, Plaster, with 500 gal Spa
    SWG, 1 HP Max Flo Pump, C-900 cartridge filter
    Solar heat

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    Re: constant return leaks

    I should upgrade my profile, I recently found out that the Company that made the pool have been out of business for about 37yrs. so mine is closer to 40yrs. old.

    Yes, the first leak was very obvious as it was a broken at an elbow where a return turns downwards and was shooting little stones to the back of the metal walls, we could here them from across the yard. When they pulled the part it had a 1.5"-2" crack along the elbow fitting. The PB company are saying this leak is 25ft. away from the first but are sure there's more.

    The first thing I did to the pool was convert to an SWG, not sure if that may have contributed to the leak.

    The whole landscaping started dipping in towards the house and I've been repairing the reverse grade slowly since I moved in 4 yrs ago. The earth and grass have been easy but the concrete has been slowly following the trend since the house was not regularly lived in for 11yrs before me and a lot of maintenance was overlooked by the previous owners. I had a section of concrete lifted and levelled last year about 12ft. from this leak. Could it have contributed, sure, but not to the first leak so I'm kinda leaning towards the aging/sloping deck reasoning

    Thanks
    1979, 40K Gallon IG Vinyl, Laser250 sand filter, 1.5 hp Pentair SuperMax VS pump, Aqua-Rite SWG

  7. Back To Top    #7

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    Re: constant return leaks

    At what depth would you recommend trenching?
    Would you recommend I add a third return while I'm at it?

    G
    1979, 40K Gallon IG Vinyl, Laser250 sand filter, 1.5 hp Pentair SuperMax VS pump, Aqua-Rite SWG

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    Mod Squad jblizzle's Avatar
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    Re: constant return leaks

    Not sure about depth, up there I would assume you normally bury things further to get below frost line, but if you blow out the lines, that may not matter.

    Adding a return would not really hurt anything, and could help with circulation in the big pool.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  9. Back To Top    #9

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    Re: constant return leaks

    Thanks, I would guess that the original lines are buried quite deep as I've seen a return repair and the pipe takes a 90 degree downturn between 6-12 inches behind the wall.

    I do have all lines blown in the fall and may have to take special care from now forward as the only trenchers I've found in my area for rent are 12" models. I'm scouring the city for deeper. Even tough lines are fully blown, would ground freezing actually damage the pipe?

    G
    1979, 40K Gallon IG Vinyl, Laser250 sand filter, 1.5 hp Pentair SuperMax VS pump, Aqua-Rite SWG

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