Triple Filtered Fuel

[poorloser]

I saw on a RV Forum where someone used the tank in the bed as a DIRTY tank (where all new fuel is pumped) and stock fuel tank as CLEAN tank (only filtered fuel). They put a fuel pump outside the DIRTY tank and two filters (1 suction 1 pressure) and pump fuel from the DIRTY tank to the CLEAN tank. I think they tee into the breather hose with 2 hoses 1 is hooked to pressure filter to the tee the other goes from the tee back to the DIRTY tank. When pump is started fuel goes down the hose from the pressure filter to the tee and on down the stock breather hose into the CLEAN tank. When fuel rises in the CLEAN tank to the breather air cannot escape and this forces the fuel up the new breather hose from the tee and back into the DIRTY tank so there is no chance of fuel spilling if pump is forgotten. Also changed vented fuel cap to nonvented cap.
I think this was done on a F**D. Has anyone done anything like this on a DMAX? Really sounds good to triple filter.