Rain does NOT cause pool problems, contrary to what many owners and many dealers think.

Rather, rain causes pool owners to stop attending to the pools, and the lack of pool owner attention to pools causes problems.

So . . . pay attention to your pool's chlorine levels WHILE it's raining, just like you would when it's sunny!

Water under the liner is almost always caused by ground water levels that are higher than your pool water level. Raise your pool to FLOOD level (above the skimmer) when rain is coming, and you will very likely avoid the problem. I don't know how they are removing the water when they are there; can someone stay home and watch?