Pool Liner Shrinkage: What Happens When You Drain Your Pool?
No, the liner will not shrink when a pool is drained. Pool liners are made of durable materials such as vinyl, fiberglass, or polyethylene, which are designed to withstand the changing water levels and temperatures that pools experience. When a pool is drained, the liner may appear to shrink due to the loss of water pressure, but it will return to its normal shape and size when the pool is refilled.
Flamingo Land: Water Attractions & Pool Information
Inground Pool Water Loss: Understanding Evaporation & Maintenance