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[DownbeatDave]

I have two extra connections for attaching home water hoses: one just aft (a couple of inches) of the gas filler cap, and the other just aft of the oil filler cap. Each of these hose connections have a screw-on cap connected with a chain. And the connection has a hose that tees into the flush hose from the stern connector on each corresponding side of the boat.

What are these for? The Operators Guide (Owner's manual) makes no mention of them. If I take the screw-on cap off during flushing (from the stern), water pours out of the connectors and right into the blower vents.

I'm guessing that it's a way to keep the boat in the water and still flush the engines. This would be especially helpful if the boat was floating in sea water and that using the top connectors allowed flushing with fresh water. Sound plausible?

[tiggerman]

The connector on the transom is a water outlet when running the boat in the water. The purpose of the top fitting is mainly for when winterizing the boat. That's where you will put antifreeze into the block for storage in the winter. The bottom hoses will get clamped off so the AF doesn't just run out on the ground. You can use either one for flushing; I prefer the bottom ones to hook the hose to. It backflushes the engines, making the water intake (in the pump) the outlet and flushing sand or what-not from the engine and pump.