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Old 10-02-2013, 10:36 AM
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JRW160 JRW160 is offline
MC Devotee
Join Date: Mar 2008
Boat: 2003 X2
Location: Huntsville, AL
Posts: 1,386
I think the manifold prevents water from flowing back out of the intake grill when draining or there is a check valve on the intake pickup line. I can't remember which way mine is setup.

That T should work fine for winterizing the ballast system. Just suck antifreeze in each tank, then drain them. I do pretty much the same thing, I just use a fake a lake instead of the T.
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