Liner age and re-streching


Well-known member
May 6, 2018
I've always read that once a liner is installed you need to keep the pool full or the liner will shrink and likely not -re-strech.

Can anyone provide a little more detail on that? I.E. how old is old? Would a 4 month old liner likely be fine if removed and reinstalled? Are there any tricks that can be done to keep it from shrinking aside from keeping it install and water in it?

I'm asking because a good friend has a situation that will require the liner being removed probably for a week or two at one point and he's trying to decide when to do it, and if he'll need a new liner.
The liner in question is a Swimline "40 gauge" unibead simply hooked over the wall of the pool.


TFP Expert
LifeTime Supporter
Apr 16, 2007
Pool Size
Salt Water Generator
SWG Type
Jandy Aquapure 1400
He's going to need a new liner. Having it hold water for 4 months and then draining for 1-2 weeks... I don't see that liner making it. I filled a pool and turned around to drain it and it didn't take long for it to shrink. JMO
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