4Leakman
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![[*]](./images/corporate/default_icon.gif) posted on 13-8-10 at 09:15 PM |
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Water seepage through concrete
I got called to a 50 year old concrete pool with a 2" per day water loss. The skimmer throat was leaking and also there was a good leak around the
pipe in the main drain. Both of these were sealed and there have been no other openings found in the shell. The plumbing is also fine.There is no
actual sump or main drain device per se. It appears that there is just an open, unpainted, concrete sump with a pipe in it. There was a good strong
water flow around the perimeter of the pipe which I sealed. The light niche is virtually non-existent as it has disintegrated over time. The light
niche was embedded in concrete which has now become the niche. The wire for the light just comes in through the concrete with no conduit of any
kind.
Has anyone ever found that bare concrete such as this could be porous allowing for water loss of several hundred gallons per day??? Dye testing shows
nothing.
Any type of sealant that could be applied underwater??
Thanks guys.
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jtech
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| posted on 14-8-10 at 08:18 AM |
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yer i had it on a new pool which was out of the ground passive leaks had to be membraned very expensive process fully tiled glass, is there any sub
soil drainage around the pool or is it free draining soil, as that amount should show up, theres nothing to me knowledge that can be applied under
water to seal the whole pool, drain and epoxy membrane the pool or time for a new pool 50 years is a good innings
hope that helps :S
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4Leakman
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| posted on 14-8-10 at 08:29 AM |
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There is no noticeable water around the pool area. The drain is 8 ft down while the light is close to 3 ft. The rest of the pool is painted and not
leaking as far as I can tell. The drain and niche are the only uncoated areas but show no flow as far as dye testing is concerned. The soil is most
likely typical New England gravel which passed water rather freely.
Thanks for your response. 
| Quote: | Originally posted by jtech
yer i had it on a new pool which was out of the ground passive leaks had to be membraned very expensive process fully tiled glass, is there any sub
soil drainage around the pool or is it free draining soil, as that amount should show up, theres nothing to me knowledge that can be applied under
water to seal the whole pool, drain and epoxy membrane the pool or time for a new pool 50 years is a good innings
hope that helps :S |
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jtech
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Registered: 12-8-10
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| posted on 14-8-10 at 09:09 AM |
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ahk
you could try something like aquakeed or Leakmaster 2 part kneed able epoxy it would use a lot and it wouldnt be ease the underwater epoxies aren’t
tacky like normal 2 part epoxy, unless you can drain the pool and use normal concrete repair products
hope it helps
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brrscuba
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Registered: 10-4-06
Location: Connecticut
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Mood: Underwater!
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| posted on 16-8-10 at 06:21 PM |
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I see many 50+ yr old pools in CT & NY, You need to keep looking and dye testing, it can be found. Did a 1950 pool yesterday, (it still has no
skimmer). Look real well in the cement light niche, I have found leaks going thru the niche cement. No leak trac to bail you out, you must dive and
dye test.
Bruce
poolrepairdiver.com
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