Hi there,
New member here; thanks for all the info I've read so far.
We have a 20+ year, 15x30, above ground pool.
Purchased new j-line beaded (I think that's what it's called) liner. Correct size for sure as we have the original pool book.
Cleaned up the floor and coved edges, and put down the new liner. Not sure if the liner is centered or not. Already put in 2" water with vacuum to suck the air off the walls, removed the wrinkles and the liner still looked twisted. That was last weekend.
Removed the water and tried again yesterday to center liner. Started with hanging the two long ends (north and south), then hung 2' on the east and west sides, then a little NE, NW, SE, SW.
Will post pics so you can see how it's not all hung yet. You can also see how the liner appears to swoop to one side.
Starting to have the same problem as last weekend. It looks twisted.
Liner tight in one corner, loose in another, and it doesn't look like it is clocked (local pool guy told me the term for centering an oval liner is "clocking" but I've only seen that term used once in about 70 threads I've read on this issue -- but I like the term; it makes sense).
When this happened last weekend, we shifted the j-line, but it didn't solve the problem.
With no points of reference on the liner to the middle of the four sides, how am I going to be sure this is centered before we start again?
Thanks for your help and suggestions,
Piteasee in Ottawa, Canada
New member here; thanks for all the info I've read so far.

We have a 20+ year, 15x30, above ground pool.
Purchased new j-line beaded (I think that's what it's called) liner. Correct size for sure as we have the original pool book.
Cleaned up the floor and coved edges, and put down the new liner. Not sure if the liner is centered or not. Already put in 2" water with vacuum to suck the air off the walls, removed the wrinkles and the liner still looked twisted. That was last weekend.
Removed the water and tried again yesterday to center liner. Started with hanging the two long ends (north and south), then hung 2' on the east and west sides, then a little NE, NW, SE, SW.
Will post pics so you can see how it's not all hung yet. You can also see how the liner appears to swoop to one side.
Starting to have the same problem as last weekend. It looks twisted.
Liner tight in one corner, loose in another, and it doesn't look like it is clocked (local pool guy told me the term for centering an oval liner is "clocking" but I've only seen that term used once in about 70 threads I've read on this issue -- but I like the term; it makes sense).
When this happened last weekend, we shifted the j-line, but it didn't solve the problem.
With no points of reference on the liner to the middle of the four sides, how am I going to be sure this is centered before we start again?
Thanks for your help and suggestions,
Piteasee in Ottawa, Canada