I put in my 20x40 hopper (8.5 Deep) pool about 10 years ago. At that time it was filled with trucks using city water. Since then I have filled the pool using our "Community" well and by-passing the softener in my house. I converted it to a saltwater chlorinating system about 5 years ago. My pool chemistry seems to be getting harder to control each year so I have a few questions:
1. Would it be beneficial to replace all or part of the water ?
2. With a liner pool what would be the best way to replace the water and how much of it ?
3. Since I am on a "community" well and am charged the same amount each month no mater what the water usage could I fill with a hose or would trucked water be significantly better ? If I fill from the community well should I run it thru the softener 1st. How much salt would the softener need and would it remove the metals ? I can get one truckload of water $250.