Need to drain my 16x32 ig concrete pool to do some plaster and tile repairs. I've read up on the risk with high water tables and all. I live in Virginia and usually this time of the year (early spring) the ground is pretty wet. My yard slopes down, so 10' behind my pool the ground elevation is below the deep end of the pool. The retaining wall is designed to let water drain.
Is this a safe situation for draining since the water table is well below the pool? I would like to have the pool drained for a couple weeks as I plan to take care of a few different issues. Does a pool only float due to high water tables or are there other cases?
Lastly, and maybe most importantly, there's 4 "plugs" on the bottom, 2 in the shallow end and two in the deepend. They look like they unscrew. Are these meant to be unscrewed to relieve possible water pressure?