flipping a couple ball valves allows me to start the motor by drawing water off the container as shown, and I can also backfeed the container with a garden hose. It allows me to do some nice tuning at the house, instead of doing it in the water.
Naturally, when it comes time to winterize, I'll fill the container with antifreeze and do the freezer test again to be sure it's not dilluted. I run the antifreeze through the motor three times by continuing to fill the feed container from the collection containers. Boat is winterized and turn-key ready for that mid winter boat ride.
Looking back many years ago, I recall running a 95-hp Hercules at WOT across Percy Priest Lake with a buddy, both dressed in our goose down coats, in the middle of the winter. We were crazy back then, and we (both) still are. He turned out to be my best man at my wedding 26 years ago. Those mid winter boat rides can be fun, because there are some nice unexpected warmish days here in Tennessee. 40-degrees seems like a heat wave!
Ah well, thankfully we still have a LOT of boating to do until winterization, but the reason I'm posting this thread again, is because the valve system I have installed has allowed me to do carb and electrical tuning work here at the house, by tossing the intake line into a container as shown and flipping the two valves. It works great, every runabout should have a system like this!
Regards,
Paul