Tagelus diverter / spider gasket

[Poconos]

Rob,
Strange. First on the gasket, if the manufacturer says lube it, I guess do it. I still have never seen any reference to doing that but I don't know everything. If I read your post right it looks like the water in the turned up waste hose reaches the level of the pool water. Is this with the pump running? If the pump is off I would understand the levels. Pump on, the water in the waste line is at some pressure so I think it would be a lot higher than the pool water level. However, should not be. The waste port should be closed. The only time that port should be connected to anything is in the backwash, waste, and rinse positions. Something still isn't right with that valve. Only thing I can suggest is open it up and look again.
Al