So whats happened so far, I think the leak is account of toilet pipping, let me know Carl

What we have done to find leak so far, 1st filled Black tank then filled gray tank. 2nd Filled fresh water holding tank put trailer in full front up & then front down. Front down no water leaks from any storage tank. Then put TT in a rear down and water showed up in the rear area, PS all storage tanks have same amount of water as in the past no difference that I can see, Found a split in copper water pipe in the side door storage area, will repair have started to pull down the sheet metal under bathroom area. Please keep in touch with me. Carl Cell Phone is 928-210-6076

Eldin, Just found your post, first off your not alone on what and how to send or if you will ever receive this note. We have the same problems w/TT. now you tll me your Wife is the computer guru, and that at this very date and time she is Painting the bathroom area, DITTO in this household also.
"My name is Carl Johnson E-Mail 4meandher@gmail.com Hillsboro, Texas" I am sending a separate msg abt. work I've done so far.

Carl, I never know if I am corresponding or not. I believe your question was about a leak in your 77 Argosy? I have a 76 26 ft. I took out all the pop rivets .,and removed the board in front of the grey water holding tank. Almost immediately in front and down to the floor were two lines. Found leak in cold water heading toward bath tub and bending 45 degree toward kitchen. Had plumbers here to down work in house so I had them to cut out the small slit in the leaking pipe and flare in a joint. Did not check to see if it leaked because I wasnt sure we were thru freezing season. I checked it for in the flare joint today and I have a drip leak. Will have them back next week to correct that. I had a 21 ft Airstream prior to this Argosy and it had a service door in the rear (outside) which made it easier to get to things. Sure hope you get this message. My wife is the computer Guru buts shes up to elbows painting the bathroom. Later Eldin Ray McGuffin