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post #2 of Old 08-25-2010
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The hose barb should have a small diameter long length tube attached when draining water. The application of a tube will slow down or prevent the in-rush of air through the drain and allow the tank to siphon to prevent air intrusion into the filter bowl.
You should however plan on bleeding air anytime you open a fuel filer. A 12vdc electric fuel pump mounted in-line between the tank and the filter set will save a lot of 'hassle' when you need to bleed.
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