I bought my house as a foreclosure with a really neglected vinyl pool. I found the guy who originally built the pool eight years ago because he is the only person in the area with a LeakTrac. He built the pool with 1 1/2" plumbing, 2 skimmers and 2 drains that return to the pump. I've was told that 2" is the standard by the pool guy who was recommended by a neighbor--the neighbor later revealed he had never used him to build a pool and had a dispute with him some years ago over sod or irrigation or something--that I used to buy and install the equipment that was sold, stolen or taken from the pool. I was just told that the variable speed pump that I was told would work with my Hayward PL-P-4 actually won't work with that controller. The reason I give the information about the 1 1/2" pipe is only as an example. This guy keeps telling me that salt ruins everything. It will ruin the lights we install, it is going to ruin the pump, it is going to erode away the things that hold the ladder and stair rail into the concrete, it will probably erode a nearby grill and anything that is metal. I know salt cannot evaporate, but is this guy smoking something? Can I really expect the pool lights and pump to fail within a few years because they are being used in a salt water pool?