03-24-2015, 09:47 PM
Well I got the tank removed from the coach, sorry but did not get any pics as it was dark outside.
I'm pretty sure I found the cause of the leak. The storage tube for the waste tank drain is mounted to the top of the waste tank.
When the hose is stored it always has a little water left in the hose, it is my belief that over time that water dripping down on to the plywood and keeping it moist is the cause of the rust, the rest of the tank has only a small amount of light surface rust in a few locations.
I am going to look for a better location for the hose storage after I finish this project.
If your waste hose is located on top of the fuel tank, I would scrape the foam insulation off and inspect the area.
I'm pretty sure I found the cause of the leak. The storage tube for the waste tank drain is mounted to the top of the waste tank.
When the hose is stored it always has a little water left in the hose, it is my belief that over time that water dripping down on to the plywood and keeping it moist is the cause of the rust, the rest of the tank has only a small amount of light surface rust in a few locations.
I am going to look for a better location for the hose storage after I finish this project.
If your waste hose is located on top of the fuel tank, I would scrape the foam insulation off and inspect the area.
Paul and Sherry Schneider
1994 newell coach 366, 38 ft with a 8v92 ddec 2