Is 30 mil thick vinyl liner for an in-ground pool better than the 20 mil?
Both liners usually offer the same warranty. The 30 mil liner is more money and a little thicker but that doesn’t necessarily mean it will last longer. We feel that a 30 mil liner may be better if the walls or base of the pool aren’t smooth but, they are not as pliable in radius corners and tend to rip.
