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Old 21-07-2012, 08:30 AM
Richard L Richard L is offline
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Join Date: Oct 2003
Location: England
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Default Re: HFS-3 failed the driving test

Will there be a pressure differential between the jets during boost and after lift-off? If it does, you need to have a checkvalve to isolate between them. This is to prevent the liquid being drawn out of the hose between the jets.

If you can keep the between the jets and FAV as short as possible, you may not require a checkvalve or checkvalves.
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