I installed a completely new system three years ago, including new Pentair Diverter Valves. A couple of months ago I was noticing the Pentair/Compool CVA-24 actuators were not always working, suspecting burned out actuators I removed them and discovered that in fact it was the Diverter Valves themselves that were scraping and dragging and this was what was keeping the actuators from moving the diverter.
So I disassembled them and found severe scraping, scuffing and sand like abrasion of the diverter valve seal and the valve body wall, here are pictures:
So can someone please explain what is leading to this destruction? (Three of my valves are doing this.)
At first I was thinking, I should have bought Jandy Never Lube Valves, but when I relooked at the Pentair description and it says, "Maintenance-free PTFE coated diverter seal, Our lube-free valves, as the name says, they never require lubrication."
Here are my relevent part numbers for reference:
Pentair 3 Way Diverter Valve P/N 263026
Pentair Actuator 2 port P/N 263043