33XO water in the hatch issue

Krause,

I don't have the same boat as you but I do have the same hull, I don't know how water could get up to the shower when coming off plane unless you are cutting the throttles hard. I get a little water on the swim platform and slowing down from being on plane but nothing that could reach the shower wand. One thing you may want to look at is the outboard rigging well. Ghat does open into the hatch our where the tubes and wires come through for the outboards. If you are cutting the throttle enough water may get in that well to overcome those two drain holes and then some would fall into the rear storage under hatch area.

I have 100 hours on my 33 OBX and the underside hatch bilge area has stayed completely dry, however I come off throttle and plane slowly. More out of habit from when I owned by 4460. I ended up having some stress cracks on the transom of my 4460 and when the insurance company and the adjuster traced the source they felt was caused by water pressure forcing the 4460s rear swim platform up when coming off plane hard. I never really ever came off plane hardly choice, but I have had alarm code drop the Volvo diesels in the 4460 back to idle due to a sensor that ended up being bad. It was the sensor that monitored the RPM on the engines and cut them back when the RPM difference became great enough. It was failing and thinking the engines were out of sync too much and cut the throttle. When that happened I got a big wash come up from the rear completely submerging the swim platform and almost reaching the second step of the platform on the 4460.

Perhaps in your case coming off plane hard is filling up the outboard rigging well and causing some overflow into th bilge from there.

So I have the 38XO and also trying to figure out where water is getting in/coming from when running in rough conditions. I got about 2 gallons the other day running in some rough chop. One area I am working on is water back flowing in from the bilge pump hose which is only 4-5 inches about the water line.

This weekend I also had a lot of water in my salon couch storage area. When I look at that AC unit drip pan, it was full of water and not draining out. I followed the clear hose in the engine room and it ran uphill at one point that was higher than the bottom of the drip pan. Basic gravity drain knowledge requires the hose run DOWNHILL and not higher than the source! I had to cut about about 6 wireties and re-run the hose so it didn't slope up. When I did that a ton of water that was backup up in the hose and drip pan started to flow out the side thru-hull. Interestingly, what I also noticed was NOT all the water was existing the thru-hull and some was leaking inside the boat right where the hose was clamped to the thru-hull. That fitting had 4 other hoses attached to it as well. While the hose clamps were tight, they really were not squeezing the hose sufficiently to make the connection water tight. I really had to tighten a number of them up. It also stands to reason if water/waves are hitting the side thru-hull and those hoses inside the boat were not water tight, water would leak into the boat.

So now I am looking at ALL the hose clamps and make sure they are ALL tight. I am also seriously thinking about re-doing my bilge hose and having it run up 12 inches before making its way down to the bilge pump.

omarf4 great diagram. Water is found by the waste tank. Located primarily next to the batteries closest to the transom. I noticed very slow drips from the transom shower wand but I have since ruled that out. I did have them extend the drain lines from the rod holders into the bilge, initially these were draining directly next to the battery! I'm a bit at a loss to be honest. My dealer drove the boat, man in the hatch and did not see any water coming in. Since they addressed the generator issue I am only noticing a slight build up near the transom battery that extends behind the waste tank. It takes me minutes to clean up after the weekend but you know how much these XOs cost new and not something I feel I should be dealing with. 

Fair point but handled poorly. Stated that info in previous posts but should have included it again. Now I am assuming you are having or had a bad day so I won’t take it personal that you delivered your message in such a way as a moderator. Have a great night.

Some additional info. We had water coming into the cabin which I noticed over this past weekend. Tech came out and addressed with some caulk. I still can't determine where its coming from. I cleaned the entire area and left the fresh water on and woke up the next morning to no water. We took it out to put in bay, about 15 miles each way and found water in the areas I have marked in the diagram omarf4 provided. I totally understand that water will come into the boat but in the areas I have marked I am concerned because it isn't directed into the bilge. I spend about an hour each weekend cleaning it up and I don't like the water building up near the batteries. Any thoughts?

2019 33XO
Cedar Point Marina - Sandusky, OH

Also tighten EVERY hose clamp. I found a number of my clamps were not sufficiently tight on a new 38XO

Hello omarf:

Do you know where I could download a similar image for a 36 XO?

Thanks,