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Detroit Section Caretaker
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4,132 Posts
The return line needs to be submerged to help avoid problems with the pump loosing it's prime, and then being hard to start.

As mentioned the fuel will help cool the pump, so you want to draw fresh fuel from the tank, No T fittings in the suction line

I don't believe it's necessary for the suction and return to be at opposite ends of the tank, but you don't want them side by side, and if they happen to be, point them in different directions.

Grigg
 

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Detroit Section Caretaker
Joined
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4,132 Posts
Most often the return is one size smaller than the suction.
It would not hurt if they were the same size.


Grigg
 
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