Originally Posted by username
I have taken all that on board and it is a concern because the main reason I am buying a rib is to be able to leave it out in all but the worst of weather.
It will be sat on a swinging mooring though.
Ribs can sit in the worst of weather, but you need to keep the water out of the inside somehow.
Ours was a swing. Tide and wind have different effects on the boat.
Have a look at it in the water and look at the water line on the transom.
You will definitely need a bilge pump though and without a well at the rear, it will constantly be slightly full of water. With the pump only pumping to about 2" on the deck, that is a lot of water, which will raise the waterline on the transom even further!! Then when rough, the bow lifts, the water rushes to the back, drops the stern further and then waves come over filling it up and overwhelming the bilge. Worth considering.
How to cure it? Firstly glass up the flooding hull. Don't buy the kits, theyare crap at the rear, but the plugs for the front venting holes do work. A good boat builder can then cut a hole in the rear of the deck in to the void and then sit a box in it to create the well!! Just make sure once the deck is cut, it is sealed very well so water doesn't get in to the deck itself.
Problem is, smaller ribs just aren't designed to be left on a mooring all summer season.
If it does flood though, it won't sink, it will just have water up to the tube line/transom line. If your battery is above that waterline, ie in a console rather than on the deck in a box, it should be ok. If your fuel tanks have the vent shut and are floating, you can hop on, drop the engine, start her up and power on. Water rocks backwards over the transom, then with the elephant trunk down it will drain out slowly.