My 9 year old Hayward Super Flow II 1.5HP in-floor cleaning pump is starting to make serious grinding noises, especially on start up and shut down, so I've ordered an identical replacement. Still puts out good pressure, but I figure not for long. I ordered the whole pump and motor, not just the motor, because as you can see from the picture (it's the middle pump), the housing has a great deal of calcium build up. About the same time, my Jandy Aquapure 1400 salt chlorinator has given up the ghost as well, so I'm going to replace that as well at the same time.
1. I'm pretty handy, but it looks to me like replacing the plumbing for the intake and out flow looks very challenging. Any suggestions?
2. A good friend of mine had the almost identical pool built by the same builder (the late unlamented Tucson [attachment=0:1mm8sp8m]pool_equipment.jpg[/attachment:1mm8sp8m]Blue Haven). His was a complete mess from the start, and this year he decided to bite the bullet and replace all his plumbing as well as his liner, deck and just about everything else (cost ~$25K). His contractor told him it's ridiculous to use a cartridge filter in a 16K gal pool and insisted he go to a large sand filter. Should I do that as well (we have the same sized pool)? I'd have to add some level ground to the equipment area to fit the sand filter, but it would make the pump replacement a lot easier.