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Old 02-04-2016, 03:50 PM
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ULTM8Z ULTM8Z is offline
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In principle, all the tank needs is a vacuum source to suck fuel vapors out and a fresh air source that can supply air at least at the same rate as the vacuum source purges the tank. Also, the vacuum line set up in such a way as to disallow liquid fuel from being sucked in (which, by experience, my setup seems to achieve).

In which case, on the tank itself you only really need one line in and one line out (which is what I have).

I'm not familiar with all the hook ups on a 96 formula canister, but I can't imagine it's too much different than my '90 TPI unit.

My canister has only two hose connections:

1.) Main vent line to the tank

2.) Constant vacuum source. The vacuum line actually hooks up to the electronic solenoid mounted on top of the canister. The ECM controls the solenoid open/close as to when to start/stop purging the tank.

Last edited by ULTM8Z; 02-04-2016 at 03:53 PM.
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Old 02-04-2016, 07:06 PM
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Che70velle Che70velle is offline
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Trey, I contacted Tanks upon receiving mine, and asked this same question. The vent that they send will only allow venting inwardly, which is fine since the tank needs this as the pump is pumping outwardly. I was concerned that perhaps I needed a vented gas cap, and the tech told me absolutely not.
There is no way that the supplied vent they send can allow fumes to enter the garage. It's a one way vent, and works well on mine, with no fumes in the shop at all. Make sure you mount it higher than the tank, and your golden.
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Old 02-05-2016, 07:51 AM
WSSix WSSix is offline
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Thanks Scott and Ultimate. I need to look at my canister again. I believe I have three line connections.
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Old 02-05-2016, 10:08 AM
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ULTM8Z ULTM8Z is offline
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I must have gotten a defective check valve or something... when I put my nose to it I could literally smell the fuel vapors coming out of it.

Any rate, check valve or no, I still prefer the factory set up.
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Old 03-15-2016, 09:59 AM
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I use II Much Fabrication vents and they work well.
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