HELP!! wet floor in aft cabin 350DA

[Ethan's Tank]

Long story short, took my dogs swimming, they sleep on the aft cabin floor in the corner under the tv. Since they were damp, I thought they made the wood floor wet with the carpet running up the seat support. I figured with the ac running all week, it would dry it out.
I'm here this weekend and the carpet is still damp and the hardwood is dark from the water, seems like it may have dried a lil bit, but after a week of air blowing around it, it should have dried.
I took my boat for a short cruise yesterday and this morning, it looks like the water is spreading. Looked under the floor where the shower sump is and the pump is running normal, pretty much bone dry except where sump is.

Does anyone know or encountered something like this, or where the water may be coming from?

 

[AMFM3]

Question: Is your water heater in the aft cabin? If so could it be leaking?

my water heater is under the seat at the back of the aft cabin in my 370. Just a thought.

Mark

 

[Ethan's Tank]

I tried taking apart that seat, but it a puzzle down there with a drill. I'm not sure we're the water heater is, if it was there, would it leak hot water?

 

[AMFM3]

Look in your owner's manual to find out where it is. But it could leak both hot and cold water depending where the leak is. If your water pump keeps recycling then there's a pressure issue.

The he other issue could be condensation from the air. Is your pump working to pump the water from that overboard?

 

[Woody]

Long story short, took my dogs swimming, they sleep on the aft cabin floor in the corner under the tv. Since they were damp, I thought they made the wood floor wet with the carpet running up the seat support. I figured with the ac running all week, it would dry it out.
I'm here this weekend and the carpet is still damp and the hardwood is dark from the water, seems like it may have dried a lil bit, but after a week of air blowing around it, it should have dried.
I took my boat for a short cruise yesterday and this morning, it looks like the water is spreading. Looked under the floor where the shower sump is and the pump is running normal, pretty much bone dry except where sump is.

Does anyone know or encountered something like this, or where the water may be coming from?

Your water heater is in the bilge but I think your water tank may be in the aft cabin under the seating. Does your water pump run when it shouldn't...if so, it may indicate a water leak. Also it appears your AC unit is port side by the aft cabin. You may want to check and make sure condensate is getting to the sump and not leaking. What do you mean the shower sump pump is running normal? It shouldn't be running all the time if that's what you meant.

 

[Ethan's Tank]

Your water heater is in the bilge but I think your water tank may be in the aft cabin under the seating. Does your water pump run when it shouldn't...if so, it may indicate a water leak. Also it appears your AC unit is port side by the aft cabin. You may want to check and make sure condensate is getting to the sump and not leaking. What do you mean the shower sump pump is running normal? It shouldn't be running all the time if that's what you meant.

I just took a towel after my son took a shower and the feels lukewarm. So it seems it maybe the water heater, what it doesn't explain is why still be wet over a week if no use?

As for the sump, I meant that I have that hole in the floor where I could look by pulling the cut out and look into it. I was just indicating that I could look in there and the pump works when it hits the level and pumps the water out of the sump.

 

[Lanier Tom]

I had the same problem with my 2008 330 DA. It turned out that the AC drain line was partially clogged. There was condensate getting to the sump, but it was also backing up in the drain pan under the AC unit. The result was the water sloshed out over the pan, went under the mid-cabin seats and started making the floor wet. Marine Max re-ran the condensate line and now we have no problems.
You can confirm this by opening the storage cabinet on the port side in the mid berth. At the back of the storage area there should be a panel with screws. Remove the panel and the AC unit is behind there. If you see water aft of the pan or seeping over the due of the pan, there is your problem.
Good luck!

 

[Ethan's Tank]

I had the same problem with my 2008 330 DA. It turned out that the AC drain line was partially clogged. There was condensate getting to the sump, but it was also backing up in the drain pan under the AC unit. The result was the water sloshed out over the pan, went under the mid-cabin seats and started making the floor wet. Marine Max re-ran the condensate line and now we have no problems.
You can confirm this by opening the storage cabinet on the port side in the mid berth. At the back of the storage area there should be a panel with screws. Remove the panel and the AC unit is behind there. If you see water aft of the pan or seeping over the due of the pan, there is your problem.
Good luck!

That makes sense, Ill have to take a look next time i can get to my boat. I've turned off the ac for the time being and running a dehumidifier to help dry out the area before mildew sets in and the hardwood soaking that water starts to warp.
What I'm wondering is if the the drain pan fills up, is there a pump in there that shoots the water out somewhere off the boat or into the sump with shower sump?

In the sump area was somewhat confusing though. there was a black box with a clear top and a pump going into it. There was tubes going into that box, if I dumped water into the shower drain, the water goes down that tube into that box, which then shoots water into the sump area and there is another pump in there that shoots it out the common porthole [not the AC porthole]. From what I can remember off top of my head, there seems to be 3 inlets and 1 outlet holes. Of the 3 inlets, 1 was shower, AC condenser and something else, it looked like the AC condensation inlet had no hose connected to it, although I am not sure if this is relative to this problem...

 

[Bucit]

Your AC should dump into the sump and then pumped overboard. If it's not plumbed into the sump that could be your problem as well.

 

[Drifter85258]

Check your skylights. Usually water runs forward when they leak but they like to leak and if they haven't been re-bedded, they have to be close to needing it given the age.

your shower sump sounds correct.

As mentioned, your AC is behind the bed. A clogged drain could be a culprit. Also a lose line. If your line from the ac to the sump pump / collection box is missing, that seems odd but an easy fix. My guess is this is your culprit area.

Check your you toilet also. Make sure all water in and out is tight. It is in the right spot to get water in the aft cabin.

Your hot water tank is in a spot in the ER that you could tell if it was leaking. Start in the ER for it and look for pooled water. Also check you water pump.

 

[Havana Shamrock]

Deleted

 

[WDCboater]

Ethan-

We had a major water intrusion issue last winter that destroyed the hardwood floor in the aft cabin and PWM had to replace it. Our water issue came from a bad seal on where the windshield meets the fiberglass and the water trickled in and went past the TV and into the aft cabin. However, if your seats aren't wet, this likely isn't the cause.

I can also speak from experience that the AC drain does sometimes get clogged up. As mentioned by others your AC is behind the storage compartment on the port side. It's also good to check on this from time to time to make sure the filter in front of the coils stays clean. My drain hose connects to the front of the drain pan.

By the way, PWM used small heaters to dry out the cabin before they did the repair work. If you are there and supervise their use, a small heater can help you dry out the floor. The wood floor is individual planks and they can buckle.

Good luck!

 

[skolbe]

Clean your shower sump. If it is clogged with gunk and/or hair it will quit pumping and overflow and eventually get that aft area carpet wet.

 

[Ethan's Tank]

So K-Nutz went to check on my boat and empty out the dehumidifier he let me borrow and he says its still wet. The AC has been shut off since Sunday night.

1. Would anything with a clogged line in the AC unit still produce water to spill out
2. He suggested it may be the fresh water tank. I was just thinking that the water tank is in the ER behine the fuel tank, but I am be wrong. He is going down to inspect to see if there is any pooled water there. From what I can remember there wasnt any and if its in the ER, I though that room was pretty much sealed except for the AC seacock hose going to the AC unit.

Correct me if I'm wrong

 

[Woody]

So K-Nutz went to check on my boat and empty out the dehumidifier he let me borrow and he says its still wet. The AC has been shut off since Sunday night.

1. Would anything with a clogged line in the AC unit still produce water to spill out
2. He suggested it may be the fresh water tank. I was just thinking that the water tank is in the ER behine the fuel tank, but I am be wrong. He is going down to inspect to see if there is any pooled water there. From what I can remember there wasnt any and if its in the ER, I though that room was pretty much sealed except for the AC seacock hose going to the AC unit.

Correct me if I'm wrong

It sure looks like the freshwater tank is under the mid-berth cushions…see page 18 bilge layout
http://www.searay.com/boat_graphics..._1013200914332PM.pdf#page=18&zoom=100,-72,625

 

[Ethan's Tank]

It sure looks like the freshwater tank is under the mid-berth cushions…see page 18 bilge layout
http://www.searay.com/boat_graphics..._1013200914332PM.pdf#page=18&zoom=100,-72,625

Has anyone heard of the fresh water tank leaking? I do hope its the AC unit drain pan, that fresh water tank must be a ***** to pull out and probably expensive to replace. Bought a high output blower to dry the area, so hopefully that will help with the surface dmage and mold [if i have it]

 

[k-nutz]

I tried taking apart that seat, but it a puzzle down there with a drill. I'm not sure we're the water heater is, if it was there, would it leak hot water?

Makes sense that there may be a water storage tank under there. I started taking the cushions up to try and see under it but I could tell that it was going to be complicated. Since it's not my boat I went ahead and stopped there and just started the dehumidifier back up. Going back today to empty your fresh water tank and dump the water from the dehumidifier.

 

[ziekman@cox.net]

I had similar symptoms, and thought it was the a/c. I really didn't think the fresh water tank was suspect, even though it is in the same place as yours. One night, during a heavy rainstorm, I was in the mid-berth watching a DVD, and I witnessed drops of water flowing from under the stairs from the direction of the sliding cabin door threshold. Sure enough, there were some loose screws at the rails. I gave them a good tightening, and the mysterious water on the floor of the mid-berth ceased.

 

[WDCboater]

I had similar symptoms, and thought it was the a/c. I really didn't think the fresh water tank was suspect, even though it is in the same place as yours. One night, during a heavy rainstorm, I was in the mid-berth watching a DVD, and I witnessed drops of water flowing from under the stairs from the direction of the sliding cabin door threshold. Sure enough, there were some loose screws at the rails. I gave them a good tightening, and the mysterious water on the floor of the mid-berth ceased.

This type of water intrusion problem sounds like it could be the issue. I haven't heard of a water tank springing a leak, but I'm sure it could happen.

 

[k-nutz]

Well Wai (Ethan's Tank) hasn't made it home yet and asked me to post these pictures I took today. Does anyone know what the hole in the back of the below picture goes to? The shower sump on Ethan's Tank clearly doesn't work after I did an inspection and it is overflowing into the rear sump pit. I believe the hole in the back goes to nowhere special and may be the source of the leak in his mid cabin. Any idea's anyone? I would have inspected a little further but I had to get home... I am suspecting that since the water level is so high in there any passing wake is rocking the boat enough for the water to enter that passage to wherever it leads and leak into the mid cabin. which is where it appears to have the most water damage on the port side.

Starboard/Aft mid cabin floor:

Port/Aft mid cabin floor: