question new to the forum, i have a older pool with a liner that i am replacing .my problem is a have a couple of big holes near the drain and the bend to the floor in the deep end . the house is located on a island and the water table is high ,i have been draining the pool now for about a week, hoping to get most of the water in the area dried up i can pump the pool down to a couple of inches . but the water and sand flow up threw the holes are pretty strong i have been trying to patch the holes with hydo cement but to no use i have even tried to fill up old panty hose with the hydulic cement and stuff in into the hole to keep it from washing away and getting it a chance to set up just doesnt work . looking for advise