I always recommend, if the boat is going to sit for any long period, that you close all through-hulls. If you do come back to the boat during off-season, whether you go for a run or not, run everything. Open the raw-water intakes, start the engines for at least 30 minutes, flush the toilets, turn electronics on, flush the domestic water, run the diesel furnace or air (if it is not pickled), etc. Check power to and in the batteries. If you have lead acid maintenance-required batteries, check fluids and add as necessary.
One last thing to make sure of when you start the engines is that water comes out of the exhausts — and no critters come with it. If you do not have any guards to keep critters from coming up the exhaust, it can become a nest that critters can chew through, causing the boat to sink (another time when consequential damages in an insurance company policy can be very important).
Posted By: Wow, this is in every respcet what I needed to know. On: 9/30/2013
Wow, this is in every respcet what I needed to know.