Re: First wet slip nerves..
I agree that keeping it in the water is the way to go, if you can.
But i disagree about leaving shore power hooked up to a 19' wellcraft. Maybe it's my salt-water perspective, but the less power leaking around, the better for corrosion. Battery switch off; pump independently wired, is all you need. Plus it's an unneccesary expense. KISS.
I happen to know that if you leave the plug out of a 17' bayboat the bilge pump will run and keep it afloat for at least 12 hours. BTDT; long story involving vandals. Your battery has to start off dead dead dead not to be able to handle a rain storm, even the big squalls.
BTW I have kept many a non-self-bailing boat in the water spring-through-fall, uncovered, single battery, but at the house; we'd usually pull them up if we were going out of town for a week or more, but even that was not necessary; just so Dad could enjoy the trip better. Had one fill up when the pump broke; not a serious problem. had a 16' starcraft with no bilge pump; we just ran the water out after it rained.
After all this, if you are still worried, apply Scotch.
So I guess you know everything about the Op and the marina as well!!!!
Doesn't matter what you know about a certain boat and how long the bilge will run on YOUR battery.
Guess you know what type battery the op has and how charged it stays!
Guess you know how large a bilge pump he currently has and how much hose and height of the outlet so you can calculate how long it will run and how much water it will expell!
Guess you know the hours of the marina personel and exactly what there experience of each individual on duty is.
Since you know all this can you educate us on how long his pump will run on his battery on his boat and how much water that pump will pump out in an hour calculated of coarse with the rise and fall of the outlet hose and the run. also how long will it take for his boat to sink if that one bilge pump fails and its raining 3 inches per hour? Just curious since you know so much.
The point is, you don't know everything and coming on here and arguing or telling the op that its a waste of time or money is not good advice to me. Some of us other boaters also have plenty of experience mooring boats. I personally have helped with probably 20 sunken docked boats and have seen atleast a hundred over my lifetime.
More boats sink at the dock than anywhere else!! Its not guess work. Boats sink because of poor maintenance but also sink because of alot of other reasons. Mostly because the boat is overwelmed with to much water and the pump is not working or it just can't keep up. Maybe someone smacks into your boat. Maybe one of your thruhull fitting cracks, maybe a battery fails, maybe you left a light on and the battery is dead, maybe one of the clamps that should always be double clamped on bilge hose comes off because of constant pumping of bilge water, etc etc.
Even self bailing boats sink at the dock. All it takes is clogged up drains from leaves or debris. I have seen it happen plenty of times. The boat is usually fine, but the motors are under water.
Most 19 foot boats will have plenty of room for a second bilge pump install. Even with two pumps installed the boat can sink.
Shore power would be great, but you can also opt for a onboard charger that you can plug in at the dock to keep batteries fully charged.
Both the options above are only good if the shore power doesn't go out. Thats when having to fully charged batteries and a back-up pump is a real good idea. Alot of boats that sink are boats that rely on shore power and they had no clue until it was to late that the power was out. I would say half the boats that sink at the dock were during very strong downpour storms that also probably nocked out power to the marina. some marinas, very very few have back-up generators.
A back up bilge pump/ system is always, ALWAYS a good idea! Covering a boat that is not self bailing is AlWAYS a good idea! Checking on your boat regularly while it sits in the mooring is ALWAYS a good idea. Making sure your systems are correct and in good working order is ALWAYS a good idea.