Found it myself. In case there is an interest, you can gain access to the grey water tank on the right side of the coach. Open the basement storage locker door under the hot water heater then remove about 10 pan head screws in the panel in the open space just above the lockers opening, then carefully slide a putty knife around the edges to break the panel loose from the putty sealant.
After all this and I found no evident leakage in the grey water connections on either side. I used different colored dyes to check all sinks and shower, still no evidence of leakage. I then added water by bucket to the grey water tank and did a static test of the tank, Nothing. I purposely did not hook the City water to the coach because I wanted the grey and black water tanks to be the only source of liquid in the coach, nothing. I now drained the tanks completely. Now I went to the other source of liquid, The City water, however before doing so I set the plumbing to bypass the hot water heater then charged the system, Nothing, all dry. I then opened the change valve to undo the hot water bypass and filled the hot water heater, NOW I have evidence of leakage running across the top of the grey water tank and dripping out over the wheel wells. Now that the offending part has be noted I have to get the hot water heater(Atwood) out. My problem now will be trying to access the 2 water connections on the back of the heater itself. I've called Winnebago and it seems the 34v is one of the more difficult to remove. I have yet to find out, but someone put it in there so I guess it has a way out. If someone has experienced this and knows of a slick trick for removal, I'd appreciate a heads up. The You Tube video helped a little but was on a more accessible unit.
"The other" George & Barbara, and the 3 Amigo's
Winnebago Adventurer 34V DP