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V berth fresh water tank leak

Discussion in 'Catalina 310' started by Clydo, Apr 16, 2018. Add this thread to a FAQ

  1. Clydo

    Clydo

    Joined May 28, 2013
    223 posts, 9 likes
    Catalina C310
    US SF Bay/Delta
    Anyone have this problem? Drained and refilled fresh water tank ( 37 gals) under
    V berth. Opened faucet got water. Very short time later discovered bilge full
    of fresh water. Checking water lines.
    Appears only way to access front of this tank would be to pull out drawers face
    of V berth and remove frame. Would this allow view of connection water line
    to tank?

    Thanks for any response.

    Clyde Thorington
    C310
    # 245
    ILEAN TOO
    San Jose, CA
     


  2. valcour

    valcour

    Joined Mar 6, 2008
    250 posts, 3 likes
    Catalina 310
    US Scott Creek, VA
    yes. You may be able to open the bottom drawer and remove it and see the connection without pulling the entire frame. You can lift the mattress and look down but may not see much from above. I'm sure you checked already checked, but are the drain petcocks under the galley sink closed if they were opened to drain last fall?
     


  3. JK_Boston_Catalina310

    JK_Boston_Catalina310

    Joined Nov 18, 2010
    1,954 posts, 79 likes
    Catalina 310
    US Hingham, MA
    Here is what the tank looks like. You can't really see the connection in the tank.

    But is your tank empty or is there just water in the bilge?
     

    Attached Files:



  4. paulj

    paulj

    Joined Mar 16, 2007
    1,234 posts, 16 likes
    Catalina 310
    US Anacortes,Wa
    Fill your tank up until water comes out of the fill hole on deck.
    Then lift up v berth matress, remove board and check around big black inspection cap.
    This is where you will find water leak :dancing:

    paulj
    :hook2:
     

    Attached Files:



    JK_Boston_Catalina310 likes this.
  5. Clydo

    Clydo

    Joined May 28, 2013
    223 posts, 9 likes
    Catalina C310
    US SF Bay/Delta
    Thank you. Nope. In this part of sunny California no need to drain each Fall.

    Clyde Thorington
    C310 # 245
    ILEAN TOO
    San Jose, CA
     


  6. Clydo

    Clydo

    Joined May 28, 2013
    223 posts, 9 likes
    Catalina C310
    US SF Bay/Delta
    Bilge had been vacuumed to dry ( from previous rain) .

    Clyde Thorington
    C310 # 245
    ILEAN TOO
    San Jose, CA
     


  7. Clydo

    Clydo

    Joined May 28, 2013
    223 posts, 9 likes
    Catalina C310
    US SF Bay/Delta
    Meant to thank you for such great pictures.

    Clyde Thorington
     


  8. JK_Boston_Catalina310

    JK_Boston_Catalina310

    Joined Nov 18, 2010
    1,954 posts, 79 likes
    Catalina 310
    US Hingham, MA
    Clyde,

    Was the tank empty or just water in the bilge?

    If the tank was full and there was water in the bilge, look at what Paul said. Many fill the tank until water flows out the fill. There are several places you could leak that would fill the bilge while still filling the tank. The clean out, the fill connection, the vent connection, etc.

    If the tank is empty that's another story.
     


    Alansails likes this.
  9. marchem

    marchem

    Joined Nov 16, 2012
    614 posts, 60 likes
    Catalina 310, 2000, #31
    US Santa Cruz
    Been there. Done that. Pumped out the bilge after...
    If I'm starting with an empty tank I put a flow meter on the end of the hose and stop at 34-35 gallons. Eventually I'll put sensors on the tank (to match the ones on the waste tank), but that's a major project to get at the side of the tank and run the wires.
     


  10. Clydo

    Clydo

    Joined May 28, 2013
    223 posts, 9 likes
    Catalina C310
    US SF Bay/Delta
    . After I pumped out the bilge filled tank about half full shortly after checked bilge and "full" of water. My leak
    (guess shouldn't call leak but small flood?) which leads me to believe connection at tank problem. Didn't have
    time to lift all three bilge covers and under galley sink to see where flow from but will do next trip up to boat
    in couple days. Thanks for all the help.

    Clyde Thorington
    C310 # 245
    ILEAN TOO
    San Jose, CA
     


  11. marchem

    marchem

    Joined Nov 16, 2012
    614 posts, 60 likes
    Catalina 310, 2000, #31
    US Santa Cruz
    If you pull out the drawers you should be able to see and/or feel the connection at the bottom of the tank. Good luck!!
     


  12. marchem

    marchem

    Joined Nov 16, 2012
    614 posts, 60 likes
    Catalina 310, 2000, #31
    US Santa Cruz
    Jesse, is that duct tape holding down your sensors and wiring? Has it worked well? Need to do it on our boat soon.
     


  13. JK_Boston_Catalina310

    JK_Boston_Catalina310

    Joined Nov 18, 2010
    1,954 posts, 79 likes
    Catalina 310
    US Hingham, MA
    Yes. The sensors are the square pieces. The tape was just to hold the wire for putting the tank back.

    It works great. It just says if the tank is empty, 1/3 full, 2/3 full and full. I put the sensors a little far apart. So the readings aren't perfect but it really helps. We have since calibrated it and know its 10 gallons from full to 2/3s, 15 gallons from 2/3 to 1/3 and 10 gallons from 1/3 to empty.
     


  14. marchem

    marchem

    Joined Nov 16, 2012
    614 posts, 60 likes
    Catalina 310, 2000, #31
    US Santa Cruz
    Nice. That's the same setup I'm doing. What did you use to glue the sensors on? The ones I used on the waste tank didn't seem to hold real well, but I haven't pulled the board off since I did it to see if they've fallen off. Sticking things to plastic is always a little dicey.
     


  15. JK_Boston_Catalina310

    JK_Boston_Catalina310

    Joined Nov 18, 2010
    1,954 posts, 79 likes
    Catalina 310
    US Hingham, MA
    They are self stick. I did some light sanding and cleaned with isopropanol before adhering .
     



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