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Old 07-08-2020, 10:20 PM   #1
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Water Fuel Separator

I have 1997 tradewinds diesel I know the separator is near the air intake but am I supposed to drain it with the engine running? and how often?
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Old 07-08-2020, 11:06 PM   #2
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No need on mine to have running.......maybe drain it every 2 years.....mine doesn't sit for long very often....
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Old 07-09-2020, 12:02 PM   #3
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Drain with the engine OFF, you don't want pressurized fuel spewing out the petcock.

Though the manuals say to drain often, some say after each fill-up, most owners do not do so at all. I've never heard of an issue from someone who did not drain regularly and most change the filters yearly anyway.

If you decide to do so, open the petcock and drain only about a tablespoon of fuel. If there's water, you will know and you can do another tablespoon. Never drain large amounts of fuel from the filter. If water has contaminated your filter to that degree, change the filter.
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2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
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fuel, water

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