Liner slipping

[bradatkins]

So it's sunny out and the pool has been filling for about 3-4 hrs. It's about 8" now.

The liner has slipped in one spot, about 1/4". So far so good. Note the pencil line vs the liner.

You can hear the liner actually stretching.

[bradatkins]

Now it's slipping, a lot!!

Notice the pencil line near the psot, it's slipped quite a bit and only has about 1 maybe 2" of overlap. This is on the one end



Same corner, but from the inside of the pool. Notice the pattern difference.



The sides seem to be OK:



What's odd, is the liner is right up against the wall on the sides, but on the ends it's like 1" away from the wall.

Does it make sense that either:

a) the pool is somehow incorrectly setup making the liner not fit on the ends

b) I didn't overlap enough

c) I dunno? haha

I don't think if I continue to fill it it'll hold. Maybe I should only fill when it's sunny, I dunno. I'm at a loss. If this slips off again,...

[bradatkins]

I think I found the problem...we started with the seam that goes in the cove about 6" above the cove, now it seems to have stretched/slipped to be on the floor. I've stopped the water, I'm guessing it shouldn't slip anymore, but not really sure if I should pull the water out and start over or not. I have about 8" of water in the pool

[bradatkins]

Well, I thought about it for a bit last night, and figured I'd start filling it again. If the liner popped out, it was going to anyways and this would give me a head start on draining it haha.

So I filled it from about 8PM till 11:30. The pool is up to 11". I couldn't get myself to let it run all night unsupervised. I started it again at about 6:30, and will watch it every so often to see how it's doing.

Now the water is climbing up the walls, pushing the liner directly against the wall on the ends. This I think is a good thing, hopefully, causing the liner to stretch on the sides. Perhaps it's now a difference force being applied against the liner (outwards against the wall, instead of down against the floor).

I have about 1" overlap left in some areas, very small. We will see!

[bradatkins]

Well it's going on still, up to 18" now, and looks to be stabilized. If anything, the pressure on the liner is reducing as the water is pushing it up against the wall. Going to continue filling it all day and keep checking on it!

[waste]

Thanks for the updates and the pics!

Oval pools are harder to 'overlap' than round. With an oval, you need to be sure it's sitting ~ perfectly centered along the long wall axis - otherwise one side will slip more than the other.

The slip from pushing the liner to the wall is less tan pulling it down to reach the floor and cove. However, as you've noticed, the 'tile line' will warp. No one but you will notice the warping, as long as the liner stays overlapped, I'd let it be.


I didn't fully realize how the liner was secured before I saw the pics otherwise, I'd have suggested a different way to secure an overlap liner while it's filling.

I'm hoping that you get the pool filled with no more issues and can soon start enjoying it!

[bradatkins]

So how would you have secured it, incase I need to do this again (hopefully not!!)

I've seen binder clips, overlapping the liner under the top plates...

[jwhouse]

Ted, what would you recommend as the best method to secure the liner during the fill process? I have used clothespins before and found them fairly convenient but if there's a better way, I'd definitely be interested. The more knowledge the better for future reference.

[waste]

Jw, you got it - wooden clothespins

I use the ones with a spring, only because I've never tried the one piece kind. I fear that the plastic clothespins might tear the liner. Also, with the spring type, you don't have a pinch point.

The problem with using the toprail is graphically shown in one of the pictures above - it popped off and ended up in the pool, if a corner had landed first, it could have torn the liner.

[bradatkins]

Just to close the loop, liner is good, pool is full

Final product: