We have an above ground Summer Waves pool and upgraded to a second-hand Krystal Clear 16" pump system last year. It has the saltwater system also, but the people giving it away said that part didn't work, so we haven't messed with that yet. I've just continued to use chlorine and the difference in how it cleaned my pool was amazing. Setting it up this year, however, the pump wouldn't turn on at all. Getting power, hums, then stops, like it's shut down. The first thing we've discovered is that the center hub pipe (the white tube that goes down the middle of the sand) in the sand has completely deteriorated and is in pieces. We haven't had time to open up the motor yet, but would that be enough to keep the pump from running? And would anyone know if we can just buy some PVC pipe and replace that? The piece at Intex is out of stock (of course). Next step is looking at the motor, but just wondering if anyone has seen this before or has any advice. Thanks!