Water coming up through head drain?

[FireDrill]

I had my 94 Sundancer 290 winterized and spring commissioned by the marina, and things are mostly well. I have some questions about/ issues with power steering and trim tabs, but I'll save those for another day.

My biggest issue right now is water that I'm pretty sure is coming up through the drain in the head (not toilet or sink- the drain intended for use when using the head as a shower). I recently turned on both sinks to drain antifreeze, refilled water tank, and made sure the water system was working. I took her out for the first real cruise of the season, and once back at dock I noticed water on the carpet down below. While searching for the source, I noticed that the head drain was bubbling up with water; I suspect that water was also seeping into the main cabin area. I wonder: is it possible that while cleaning and hosing down the head, I filled whatever tank that is (still learning!), and so that water is coming back up? Or is there maybe a seacock that needs to be opened? If the latter, how do I figure out which one?

The water on the floor of the cabin is clear, and smells slightly of chemicals, maybe antifreeze. It is definitely not actual waste: I had the waste tank fully pumped out before winterizing. Bilge pumps are working, and it really seems that this water is coming from that one drain.

Thanks for any help or insight!!

 

[Creekwood]

Sounds like the shower sump is clogged and/or the pump is not working.

 

[BurleyCove]

agree with creekwood. Look under the mid cabin bunk. The center forward wood panel. you'll need to unscrew it. Thats where the shower sump is. It also drains the water from the A/C. It can get nasty under there if the sump quits working. Been there.

 

[FireDrill]

I'm not sure I understand where the shower sump is-- mid-cabin, I have the table and two benches, and have bunks forward and aft.

Thnaks!

 

[BurleyCove]

under the aft bunk. take out the cushions and unscrew the small wood panel right in front of you the sump is under that wood panel

 

[FireDrill]

Thanks! Have been out of town but plan to spend the weekend trying to figure this out. I actually did know where the sump pump is, it turns out, just forgot that's what it was called. I've had trouble with it in the past, and it was supposed to have been replaced two years ago, so it's pretty annoying.

 

[Crushin It]

Clean it at least once per year!!!