Head wont empty waste

[crankman1]

I changed the joker,installed new pump lever,greased it,changed the casket for the lever between dry pump and wet pump.Feels like no suction to push waste to holding tank or sucking in air.If i pump it really fast it will empty the bowl.But!the water shoots up out of the toilet and will not completely empty the bowl.Anyone got and idea what my problem could be?the head is in a 1992 chriss craft crowne.

 

[steven_p]

Re: Head wont empty waste

Waste line between head and holding tank is clogged? Has anyone flushed any paper towels etc that you know of? What about the piston that does the pumping? Perhaps the orings are shot and it's not building pressure? Does it pump raw water into the bowl ok?

 

[she won]

Re: Head wont empty waste

Gotta go with steven- plugged line. If you pump it fast, and water comes back at you, then it sounds like your pressure is building. If water shoots out - it is from back pressure. Check the line first