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68gmsee · 12-15-2009, 05:07 PM

I'm not very familiar with the two tank operation other than what I've seen on my BIL's truck. He used the secondary tank as a backup but about once ever few months or so, he would use the secondary tank just to keep the gas from getting stale.

IIRC he had a solenoid operated valve that would shut the supply from one tank and open the other.

Not sure what you mean by return line but his was factory installed an worked real well. That valve you're looking at could do the trick. It's similar operation as the one he had.

12-15-2009, 05:07 PM	#2
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Fuel Tank Valve Question I'm not very familiar with the two tank operation other than what I've seen on my BIL's truck. He used the secondary tank as a backup but about once ever few months or so, he would use the secondary tank just to keep the gas from getting stale. IIRC he had a solenoid operated valve that would shut the supply from one tank and open the other. Not sure what you mean by return line but his was factory installed an worked real well. That valve you're looking at could do the trick. It's similar operation as the one he had.