Water Behind liner?

[PhotoEd]

Hi all,

Noticed over the weekend that I have a small "pool" of water trapped behind the liner on one wall. Not sure how long it's been there. It's up near the surface of the water, about the diameter of a basket ball.

Any thoughts?

 

[waste]

HI, you asked for thoughts and I'll give you mine (good or bad :lol: )

You need to alleviate the 'surface water' that is causing your liner to bulge! There has been talk here about 'well points', etc. but you need a way to keep the water from 'puddling' around your pool area, and relieve that water quickly, so that it doesn't cause any permanent damage :!:

How is the topography of your yard? Is it possible to make a drainage line to keep the water from 'puddling' around your pool?

We can help you plan and implement drainage, but we need to know your yard (a pic would be VERY helpful )

Even if you make a 'trench' to alleviate the excess water - as the water subsides, brush or, by hand, work out any wrinkles that form.

This is woefully incomplete but do what you can and ask us questions :-D

 

[bk406]

You can see this in the spring after some heavy rains. Have you guys had any rains lately? Ever done this before?
A lot of times it will go away on its own when the water in the soil starts to drain.

 

[PhotoEd]

It has never done this before. We have had a good bit of rain, but the location of the pool and the location of the bubble have me doubting that it's ground water...

Hmmm......

 

[bk406]

It cant be water from the pool, if thats what you're thinking. It's ground water.

 

[PhotoEd]

Just below the water line? Wouldn't I see bigger evidence of ground water along the bottom of the pool?

 

[bk406]

Wouldn't I see bigger evidence of ground water along the bottom of the pool?

Not necesserily. But it cant be water from the pool causing a bulge. It has to be water pressure from outside the pool to push a bulge out to overcome the pressure of the water already in the pool.
Theres no way water from inside the pool can overcome the pressure of the water pushing against the liner to allow water to get behind it. It has to come from the outside.
Does that make sense? I probably didnt explain it very well, it's kinda late :?

 

[PhotoEd]

That makes perfect sense! Now, what to do about my bulge? Thanks for taking the time to explain it to me...now go to bed!!!

 

[PoolGuyNJ]

What kind of decking and how wide is it?

Scott

 

[PhotoEd]

Concrete. 4ft.

 

[PoolGuyNJ]

Sounds like your are going to need a perimeter drain just under the grass to pull surface water away and send it elsewhere or you have a leaking irrigation line near there.

Scot