Expandable Liner Not Working
We are installing a 28' round doughboy with a 6' deep end. We attempted to put the liner in yesterday but after filling about 5000 gal we realized the liner is bunching on one side and not touching the wall on the other side of the pool. I don't believe it will stretch in because the bottom seam isn't in the cove. It's about 4" on the bottom. Basically it went in crooked. So as we wait for it to drain the perfectly fresh 5000 gal of water I was wondering if the liner will re-stretch in ok or will it shrink?
Be sure you are installing the liner per instructions on this page.
Expandable Liner Installation
The next most important thing is to use the sun. Stretching a liner into a deep end should only be done in full sun. The liner will stretch a lot as long as it is in direct sun. When the sun is off the area that needs stretching it is best to turn the hose off and start it again the next day.
Your liner should be just fine to drain and start over again. Shrinking does not normally start until the liner is a couple of years old, till then you are fine to do it until you get it right. As long as you don't cut the skimmer opening, once you do that it better be right. That's why I suggest that beginners wait until the pool is filled to just below the skimmer opening before attempting to install it.