We just bought a house and it came with a polaris 280 with the pool. Over the past month or so, the hose and plastic parts on the hose have been falling apart. When I would try to disconnect the hoses and stuff, the plastic would just crumble. Anyone ever experience this? I keep the chlorine around 6 ppm, pH is high at 8.0 but I've been in a back and forth bounce trying to lower TA.