For background: I recently bought a 31ft 5th wheel to live in full time on family property due to the high economical cost of living in my area. The problem I am having is that the people I bought the RV from never emptied the black tank and it went...
I did not think of the large portable tank possibility. With that, I would be able to open it up and get a high pressure hose in through the dump valve and try to break it down from the other side. I did try contacting a holding tank service, but d...
