I went winterize my 2003 Greyhawk 31rb and pump seemed to be fine. I had troubles draining the fresh water tanks. Just opening the low point vales water would just trickle out even though the tank was more than 3/4 full. I turned the pump on with the vales open and water flowed out at a nice quick pace. Then after all the water seems to be out, I tried to get the pump to suck up the antifreeze, but it was extremely slow and almost no suction. I had a really hard time getting it to prime with the anti-freeze as well. I eventually got anti-freeze to come through all of my faucets and toilet, but with only very little flow and much sputtering. I have come to the conclusion that the pump has gone bad and I should replace it. I can see the pump up there behind the utlity panel in the basement, but I have no idea how to get at it. I took some of the screws out of the panel thinking I could get to it from there, but it appears I would have to disconnect an awful lot of plumbing and electrical stuff to allow that paenl to actually be removed. Is there a trick anyone knows as to how to acccess the water pump for replacement?