We need to replace the liner in our approx. 20 x 40' free form Foxx Pool in Westchester County, NY. Have gotten four quotes. Two in the $4,500 range and two in the $7,500 range !! Pool is a sports pool with deep and shallow ends on both sides. Deepest point is 5 1/2 feet from corner to corner for lap swimming. Anyway, want to make a decision this week. Can anyone offer up positive/negative experiences with Pool companies that would service my area for liner replacement. FYI- the four companies which gave me quotes are: (1) Orange County Pools; (2) Different Strokes Pools; (3) Rainbow Pools; and (4) Najame & Son Pools. Thanks as always for your input.