Quote Originally Posted by Watermom View Post
You can't drain a pool down too far or you may have it pop out of the ground if you have a high water table. Thus, the need to do several smaller drains instead of one big one.
You can float the liner in vinyl pools as well. The rule of thumb with virtually all pool types is no more than 1 foot below the skimmer.

My water table is so high I never go more than a hair below the return lines (about 4 inches below skimmer level). We have a high water table here and even that's risky enough.