I have a 27ft circle above ground pool and every year since I bought this place in 2010 I have had to rebuild this Hayward pump. I have never had a pool, but this can't be the way to go every year can it? Once again I plugged it up after getting the pool to the right depth and HUMMMMMMMMMMMMMMM. No turning or pumping. Just humming. I turned it off and came inside to figure out a new plan. I had the sand changed out in 2010. If it all needs redone would salt water be better to switch to? I am as green as your water in February when it comes to these things.