Hi I'm writing in this forum to get in ground expert installers opinion on if it's ok for a pool company that had to pull apart all the metal framing of my in ground pool because of a bad concrete pour and they are trying to raise the pool about 12", but they are trying to keep the old bottom slab and pour new concrete over top !! My concern is the ground water that sits at the bottom right now and the 2 different slabs not being done and bonded together !! I'm also wandering if that would leave me with a vice in my yard whenever comes time to sell our house!?