I'm going to add a second grey water tank for boondocking.
I will use a macerator pump to transfer from the current grey water tank to the secondary grey tank in the secondary tank will have its own Outlet. I've done this before in a trailer to work really well. What I need help with is where to put it on my Thor Palazzo. The best place I could find was right in the def compartment. I was thinking about getting a welded frame to set a tank on. My question to everyone is is there a good amount of heat in the def compartment because the engine is pretty close. I don't want to have my tank melt since it'll be a ABS.
Why not just run a hose from the upper level of the existing tank (screw in fitting) to the new tank, wherever it is, to a lower level of the new tank and let gravity do the work instead of adding another pump system? If you use a tube down into the original tank, you could actually use a natural siphoning technique to keep both tanks equally filled.
Thank You for the quick reply. Interestingly, that is the reason I went with a gasoline engine. We only use the RV once in a while and I have heard that is also a no-no for a diesal engine. And then there are the fuel injector issues...