Hi, I am new to this forum. Any advice I could get would be very helpful. I would also like to know if anyone has experienced my problem. I hired a contractor to replace our vinyl liner. Our old liner certainly did it's job considering it was 18 years old. It was losing water however and the contractor said that he thought it was losing water at the pool light. The plumbing checked out fine. My pool is a 16x32 by the way, 8 1/2 deep. When they started taking the old liner up the contractor said ground water was coming up. We had record snowfall this year, maybe that had something to do with it or maybe an underground spring or possibly the water that leaked from the pool on top of it. The ground water was only present in the deep end of course. When the pool was initially installed the contractor encountered ground water and rectified the problem. He did not install a pump line for groundwater though. Not sure how he corrected it but like I said before I never had any problems with the liner for 18 years, no floating, etc. The contractor who is doing the liner replacement put a subpump in some gravel in the deep end and said they have to get rid of the water before they can move any further. The subpump has been in there for six days and is still pumping water. I am getting very nervous. Has anyone experienced anything like this? He told me he has one customer who's groundwater has been pumping for three weeks now! Please Help!!!!