Boy, this kind of an issue irritates me to no end.
A case in point, the last thing I want is for my motorhome's hard to access in-tank fuel pump to go out in the Western Utah desert. Why don't OEMs merely offer the option of dual in-tank fuel pumps - operating in parallel with each other? The chances of both letting you down at the same time are infinitely less than one letting you down.
This approach is ESPECIALLY NECESSARY with in-tank pumps - because in the "old days" one could just carry a spare fuel pump along and install it right on the spot bolted to the engine no matter where you were when it failed. Don't ya just love "progress". :(
