Age is only one factor
A liner may need replacement because of fading, brittleness, stretching, leaking, damage, or changes in fit even if its exact age is unknown.
Wrinkles and movement should be evaluated
Groundwater, washout areas, settling, drainage, and existing floor conditions can all affect how a liner sits.
Do not drain the pool too early
A vinyl-lined pool should not be drained without a clear plan. Draining can introduce risks and should be coordinated with the installer.
An inspection helps define the scope
Measurements, wall condition, floor condition, fittings, steps, and access all affect the replacement process and estimate.
Every pool is different.
This article provides general educational information. Pool condition, equipment, water chemistry, and site conditions should be evaluated before choosing a treatment or repair plan.