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Old 05-13-2013, 03:58 PM
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Miss Rita Miss Rita is offline
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Join Date: Jul 2009
Boat: 1992 ProStar 205, 1991 Ski Pro
Location: Black Hills
Posts: 852
Quote:
The Y-Tube is to return the hot water that comes from the heater core back to the engine
OK, makes more sense. I was thinking the Y-tube was cold water supply, not warm water return. Thanks for the clarification.

My other boat has a shower, uses cold lake water mixed with warm engine water in the right proportions to make a nicy comfy rinse. I suppose a heater doesn't need any mixing valve, just the Lo-Med-Hi fan speed.
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