shower sump pump

Discussion in 'Sport Cruisers' started by another escapade, Nov 3, 2010.

  1. another escapade

    another escapade New Member

    Oct 11, 2009
    long island , new york
    330 Sundancer 1999
    twin 7.4 mpi's v-drives
    well its not exactly the pump, does anybody know why I get water in the compartment surrounding the shower sump pump? Where is the water coming from?
  2. TheBigb

    TheBigb Member

    Aug 4, 2008
    NJ Shore
    2013 370 Venture
    Twin Verado 300's + Genny
    do you have ac?
  3. Groucho

    Groucho Active Member

    Jun 11, 2008
    Albany/Lake George NY
    2006 290 DA
    496 B111
    I get the same thing. Mine seems to get so full before the automatic pump turns on, It then leaks out to the outside. I'm kinda tired of having the outside wet myself. I wish they would make one that actually seals. I've had 3 Sea Rays with the same system and the same problem.
  4. Rxflyer

    Rxflyer New Member

    Jul 25, 2009
    White House, TN
    Past boat: 2005 Sundancer 300 w/5.0L MPI Bravo II
    Current boat: Carver 450 Voyager w/Cummins 450s
    Cummins 450
    Seems to me that if the shower sump/AC condensate collection box is overfilling, there's a problem with the float switch. Maybe just a good cleaning with bilge cleaner would take care of it.
  5. JLM268

    JLM268 New Member

    Oct 24, 2010
    Freeport New York
    1989 Sea Ray Sundancer
    454 Mercruiser w/Bravo Drive
    Does any one know where the sump pump is located on a 1989 268 is?
  6. carterchapman

    carterchapman Well-Known Member TECHNICAL Contributor SILVER Sponsor

    Mar 25, 2008
    Lake Chickamauga/Marietta, GA/Ft. Myers, FL
    2006 Sea Ray 58 DB
    MAN CRM V8-900s, Twin Disc Drives; Onan 21.5 Generator
    I know we have different boats, and I don't know where your FW tank is, so this may not help.

    I was getting water in that compartment and it turned out to be from my fresh water tank, which is under the aft bunk in the '05 340. I found a crack in the pvc elbow on the outlet pipe. My MM mechanic said it was common.

    I left my tank dry for a week and when there was no water in the center bilge, I confirmed the problem. Took the bunk apart and found the FW leak.
  7. Cincy Aquaholic

    Cincy Aquaholic Active Member

    Mar 15, 2009
    290 SS - 2016 Ford F250 Powerstroke
    Twin 5.7 with Bravo 1's
    Groucho- my sump box was occasionally overflowing as well. No real rhym or reason even after a thorough cleaning so I bit the bullet and paid $65 on eBay for an whole new one. Since then it's worked perfectly and we shower every weekend. I do a better of job of keeping it clean now though. Unplug the pump and wash it once a month. Plus, I let scalding hot water rinse it at the end of the weekend. Stays dry as a bone down there as it should.
  8. Groucho

    Groucho Active Member

    Jun 11, 2008
    Albany/Lake George NY
    2006 290 DA
    496 B111
    I think my float may be sticking for lack of use. The only water we use is for the bathroom sink for teeth brushing and the AC condensate. I should pour some hot water down there every weekend. We use the shower in the main house so it isn't used much, but if I pull the cover open and if I tap on the plastic...the pump goes on. I noticed if it gets full there is a nipple that excess water flows out.
  9. jamesgang

    jamesgang Member

    Jun 28, 2007
    Guntersville Lake, AL
    1998 Sea Ray Sundancer 290
    Twin 5.7 L Mercruisers - Alphas
    My sump has never overflowed but has been stopped up w/scum from the shower drain. First time it happened we thought "bad pump" but we cleaned the box and it worked fine. We learned that it never completely pumps all of the water (shower & condensate) out and what is left in the sump box turns scummy and clogs the float switch & pump. I can tell when it needs a manual cleaning as the shower drain backs up. We wash our hair over the sink as it drains thru-hull but the shower water is pumped overboard via the sump pump. We are careful to rinse the shower floor/drain w/hot water after every shower and listen for the pump to work several times to help prevent this build-up. Seems to help alot. Could be a cause for your overflow.
  10. BlewByYou88

    BlewByYou88 Member

    Jul 24, 2010
    268 Sea Ray Sundancer 1988
    2X 4.3L 4bbl Mercs w/ Alphas
    Its under the mid-cabin berth. Lift up your two cushions in the back berth. You will see a little step/box at the very aft point. Lift it open (Hinged), there you will find your step down/Shower sump pump.
  11. mawyatt

    mawyatt New Member

    Dec 13, 2007
    Clearwater, Fl
    2008 Sundancer 38DA
    8.1L Mercruisers
    We had a small leak that I traced to a cracket outlet PVC pipe fitting like Carter and Sue mentioned, except ours was straight not an elbow. MM replaced the entire sump box and no leaks have returned.
  12. JimFromMD

    JimFromMD Active Member

    Aug 9, 2010
    Annapolis, MD - Middle Chesapeake Bay
    2005 300DA, Garmin 740s w/Vision Charts and GMR18HD RADAR
    5.0MPI w/BIIs, Kohler 5E Generator.
    I have an 05 300 Dancer which came with the grey water package since the boat was kept on a lake where nothing was allowed to go over the side. All my sinks, shower, and AC go into the sump box under the floor, and that then gets pumped over the side via a through-hull I had added back on the port side stern near the holding tank. (previously it pumped into the holding tank in its gray water configuration).

    After using some water, my pump kicks on and off for some time time trying to pump out the small residual left in the box after the float switch pumps the box out. It almost sounds like the float switch has a "water witch" function that kicks it on occasionally wheter there is enough for the float switch or not. I cant tell if that is because there may be water left in the line but not enough to get pumped all the way over the side, and backflows into the drain box, or if there is actually non-float activated pump feature in that pump.

    I've also had the float switch get stuck with the pump on twice while under way, only to find out when i get back to the pier and shut off the motors and can hear it. Have to unscrew the box and jiggle the swtich and then it stops. Maybe some hot water on a regular basis will keep the swtich clean/cleared out.

    Ahh things to contemplate until the shrink wrap comes off in March.
  13. JLM268

    JLM268 New Member

    Oct 24, 2010
    Freeport New York
    1989 Sea Ray Sundancer
    454 Mercruiser w/Bravo Drive
    I had to use a crowbar to get it open the wood was so damp that it was jammed tight. It's full of water but the pump does not run. I see where the wiring and drain hose exit the box. Where does the drain hose go? I am getting water in the bilge and thinking that this might be the cause. Any suggestions?
  14. roadkingh1

    roadkingh1 New Member

    May 4, 2008
    Covington, La
    97' 370DA
    Twin 7.4l MPI v drive
    I have the same problem when showers are taken and both a/c are running. The switch keep going out for some reason and when you let dry it works. I guess the dampness takes them out. To resolve that problem I install an electronic switch..........problem solved!
    I was thinking of fabricating a fiberglass box to fit over the the existing sump pump to give it additional height. That is another project on the horizon.
  15. jcoyrochny

    jcoyrochny Member

    Jul 22, 2009
    Charleston, SC
    Garmin GPSMAP 541, Garmin Fishfinder 400C, Garmin VHF 200 DSC Radio
    7.4L, 454 CID, 330hp, Bravo II 1.50.1
    I got rid of this problem by getting rid of the switch and put in a self-priming pump or some call them automatic pumps
  16. Petep

    Petep Member

    Oct 5, 2006
    Grosse Pointe, MI
    460 Sundancer
    Cummins 480CE
    Very important step in cleaning a SeaRay sump box. The Float switch muct be removed (two bolts) and cleaned out INSIDE the float switch housing "box". It will gunk up and make the switch not travel freely. You go to all the trouble of shop vacuming out and cleaning the scum from the box - go the extra step and clean out the float - I would like to meet the guy who came up with these SeaRay Sump boxes-there has to be a better way!
  17. Groucho

    Groucho Active Member

    Jun 11, 2008
    Albany/Lake George NY
    2006 290 DA
    496 B111

    +1 ...:smt038
  18. barryg

    barryg Member

    Jun 24, 2007
    Fort Lauderdale
    2005 320 Sundancer, Garmin 5208
    Twin V-Drives 350 Mags
    I've had to replace mine once before and now again the new one is not working... I keep the boat docked behind my house but have been so busy with work that I've not had a chance to use it often. Went down a few weekends ago and heard a noise and wasn't sure what it was or where it was coming from... Sure enough, the water was full in the box, the pump was pumping (the water was extremely hot from the heat of the pump), but it wasn't getting the water out of the box? I removed the float switch and the pump, cleaned out the gunk and when I put them both back, now the pump doesn't work at all.. Even the extra hight water pump right past it doesn't get the water out.. Thinking something is stuck in the line, or the check valve is stuck closed...

    Hate that sump pump!!! What a PITA!
  19. BlewByYou88

    BlewByYou88 Member

    Jul 24, 2010
    268 Sea Ray Sundancer 1988
    2X 4.3L 4bbl Mercs w/ Alphas
    Mine goes through the port stringer and pops up on the port side of the engine compartment, both wires and discharge hose. Mine exits out the 3/4" through hull on the Port side all the way aft side of the vessel. Right above the 1 1/2" Through hull for the deck drains. If the pump ain't working, replace it, it is necessary! You may also want to fish a new hose through the passage going to the through Hull.
    Last edited: Nov 13, 2010
  20. beasterdamas

    beasterdamas New Member

    Jun 27, 2015
    370 DA
    Bravo III
    I have a 2010 Sea Ray 370DA; shower sump is located in a bilge under the salon floor (Attwood model with a 500 GPH pump). This season I’ve noted water accumulating in the aft section of bilge behind the shower sump, with condensate coming from one of two drain holes (left side drain — see photo). Does anyone know where these drains lead too? Perhaps under the fresh water tank??

    Attached Files:

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