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Thread: Dual gas tanks

  1. #1
    Roostertail
    I have dual gas tanks that are plumbed together. There is a T at the fuel pump. The problem is that it drains one tank before the other and sucks air when running flat out. I have made sure that both lines from the tank are the same length and that there are no restrictions. Any suggestions?
    Thanks, Terry

  2. #2
    sleekster
    i have dual tanks on my 1979 sleekcraft and it has a electric valve to switch between tanks, also each tank has it's own float so one gauge reads either tank it is a cool ste up, they also make a manual 3-way valve.

  3. #3
    sleekster
    i have dual tanks on my 1979 sleekcraft and it has a electric valve to switch between tanks, also each tank has it's own float so one gauge reads either tank it is a cool ste up, they also make a manual 3-way valve.

  4. #4
    HalletDave
    Rooster,
    I have dual 22gal tanks in my '77 Hallett. They are connected with a T, no valve. They both drain
    at an equal rate. In fact they both run out of gas at the same time. Obstruction in a fuel line or kinked fuel line. Could tank venting have an effect on equal fuel flow? Let us know what you find. I don't want this type of situation occurring in my boat.

  5. #5
    Charger455
    I recently had a problem with my pump running dry at full throttle. I found that the L fitting that hooked up to the tank pick-up had a check valve that had crap, rust and varnish that was restricting flow. Disconnect the hose unscreww the fitting and check it out

  6. #6
    hboldno7
    sounds like a venting problem

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