1st things first, taste it. Then pee in it. Its going to be salt
anyway. My fresh water tanks are too small to flood over the floor plates.
Next, grab the flashlight and try to determine the rate of filling. You woke up because of a full bladder, not an impact or a violent change in motion. No loud noise woke you up. That sez a major structural problem is not likely. Stop splashing about and listen for the sound of running water. Start checking in the following order.
1. First thing to check is to pull up the floor plates over the keel
compartment where the DS transducer and the Sumlog head
exit the hull
. These are the deepest hull
penetrations and will have the most water force behind them if they are gone. Are they still there? Leaks
here should be obvious. A jet of water should hit you in the face. Plug
with a tapered plug
2. Take the flash light and go look in the engine
space. Check the cockpit
drain hoses, Port and starboard through hulls, the rudder
stuffing box and rudder shaft log and the shaft stuffing box and shaft log for water leaking. These are deep to middle deep. You can see them by looking through the lifted counter top and shining the light aft past the engine block. If one of the drain hoses is gone, then close the seacock using the extension handle on either side of the engine bearers. If the seacocks are broken off or if the rudder/shaft stuffing box or shaft log is gone, and its leaking rapidly, then decide if you want to risk getting caught under the cockpit deck
in a boat that's filling up with water.....
3. Moving on, those not being the problem, check the raw water
intake to see if the seacock has sheared off. (this one should be closed when off shore.) If it is, pull out the access panel, and bung a tapered plug into it. End of story. Start pumping.
4. Next in order, check the galley
sink drain (shallow depth) and the freshwater piping from under the port side deck
down and forward to the pressure pump. Follow that up to the accumulator and then to the bottom of the galley
fresh water tap. Fresh water piping don't sweat it. More in the jerry cans in the lazarette. If the galley drain hose is gone, close the seacock. If the cock is gone, bung a tapered plug into it. Access via the panel under the sink.
Next, check the fresh water line running from the bow tank to the head
faucet. Check the head sink drain. (shallow depth) Check the head intake plumbing
. (shallow depth) Again, fresh water, no worries. Its too small to worry about. Sink drain, close or plug, access at bottom front of cabinet. Head intake, close or plug, seacock in the open, on the right side of the head.
Next move forward and go check the waste outlet on the port side, (shallow depth) under the head of the V-berth. Close or plug.
Having checked and verified every through hull and hose, check the water level in the cabin
. Is it still rising? If so somehow you now have a structural failure. Pull up the floor plates over the keel
bays and toss in some rice or cornflakes, any thing that will float. Look to see if there is a swirling motion caused by an upwelling of water in any one bay. Possible broken keel bolt/s?
Now its time to get the raft and bailout gear
ready. Dealing with a deep keel leak may well be impossible.