Re: Is there away to flush raw water inboards?
I have a closed system on my 302 Ford, with a raw water intake thru-hull and seacock. I put a tee just after the seacock, with a 2" hose coming up vertically, to about 6" above the air filter height. Close the seacock, insert garden hose into vertical hose and run engine. By the way, have a threaded PVC fitting on the hose end, with srcew-in hex cap. That cap has to be tight so raw pump doesn't suck air when under full power.<br /><br />I could make an emergency bilge pump out of this, but I prefer to simply run a standalone high capacity bilge pump, backed up by a manual pump. An engine's raw water pump really throws water, and can quickly exhaust a seemingly large amount of bilge water. Then you're on a "dry engine", unless you think and act real cool under the distress of a holed boat, to reach into a water-filled engine hole with the engine belts turning, boat pitching, etc. If it's that bad, make a run for shore, if possible. But of course, so much depends on why such water is coming in to begin with. But always better to lose the boat rather than losing yourself and the boat as your arm is snagged or trapped in the engine somehow.