We have a '94 Liberty XL40 Classic Lady with the 8V92 - I think these coaches were built pretty much the same for a number of years. This is mostly for Ken but some others may have the same question. The macerator pump is located as Jon has pointed out - on the ceiling of the compartment - over the top of the holding tank - on the front of the tank you will find a discharge line - white PVC with rubber and stainless couplings - it goes across towards the rear then up to the ceiling and back towards the middle of the bus. Look with a flashlight and you will find the pump mounted to the top of the compartment and the outlet goes out over the the top of the wheel housing and into the engine compartment on the passenger side. It comes out with a standard hose fitting with a brass cap at the rear under the door where the batteries and Webasto are located. It is mounted below this door and you do not need to open the door for access but you can see where the line goes with the door to this compartment open. Mine runs but will not pump and it has been my experience with boats that these pumps are normally located at the bottom of the tank - not on top where it has to develop a lot of lift to work - I will try Jeffrey's suggestion and see if I can get it to prime. Perhaps this pump will work in this location - I've just never been successful in getting it to prime. Obviously it would be easier if the tank were completely full and the line was full also - but that was the situation when I tried it the first time. I have used a similar pump with the three inch fitting attached to pump the tank many times and they work great if you do not have a large dump available but do have access to a small sewer inlet that a garden hose will go into. The built-in pump would be very convenient if it worked. My question for Jeffrey would be if getting this thing primed the first time is the only difficulty or if it loses prime between usages and you have to fight with it every time? Relocating the pump to the bottom of the compartment would be a challenge but once done should work well.

Chuck Wall