we recently put in a 28' AG. Had to excavate the back hill out so pool and new deck would meet up with existing covered deck. All is good, except the ground around the pool is now rain soaked and holding water. This is the front of the hill, so it goes from about 3.5 ft to 0 as it goes around. We didn't build a retainging wall there. Just sloped the hill and put sand stone over it. So now it seems we have this basin of water and today I noticed that the liner on that side has some indents of about 2". Wall seems fine and it is still level. Any suggestions on what to do to get and keep this water from collecting around the pool base?