I can't pump to waste. I've tried all of the settings, waste, filter, recirc nothing happens with any of them. I can see a few air bubbles coming from one of the return jets, but that it about it. I can see the motor turning. Perhaps something is wrong with the impeller. I do have one idea. There has been a slow leak around the shaft for several months now. I should have had someone look at it earlier. My guess is that it is the shaft seal. If it has broken all the way, would that cause me to not be able to prime the pump? It just seems convenient that it happened right as I am backwashing the pump. I went on and ordered a replacement seal kit. If that doesn't work, I guess I'll have to break down and call the professionals.