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poop in the bilge

Discussion in 'Carver Yacht' started by adambomb, Sep 16, 2011.

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  1. adambomb

    adambomb Member

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    I have 355 motor yacht 1995 , I have 2 tanks for waste the hose that comes from the macerator and connects to the waste tank ,right on the wall where it connects it looks like its leaking . What can I use to seal that point where it meets,epoxy or something that will still adhere even with the moisture. Thanks
  2. Fireman431

    Fireman431 Senior Member

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    You have to determine what's leaking, first. Don't just slap some sealer on it, because it's going to fail. Have the tank pumped clean. Then remove the hose and inspect the fitting to see if it's split/cracked. Then check the hose for any abnormalities. They rarely fail, but they can develop blisters and thinning if too many chemicals have been used or allowed to stay in the tank.

    More than likely it's a failed fitting or loose/bad clamping. Unfortunately there's no sanitary way of doing the work, but it has to be done.
  3. SeaEric

    SeaEric YF Historian

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    I have had very good emergency repair results with "Rescue Tape". I keep a supply handy on board always. Do a Google search to find where to get it.
  4. Capt J

    Capt J Senior Member

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    Follow what Fireman said, in addition to that, what condition is the hose in? Is it stiff? Does it have cracking on the outer sheeth? While you have the tanks empty and hose off, if the tank is ok, CHANGE the hose with a new one and make sure it's approved for holding tank/waste use.
  5. adambomb

    adambomb Member

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    It's not the hose it's right at flat part of tank right where it connects to tank and hose looks ok
  6. Pascal

    Pascal Senior Member

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    post a picture of the fitting. on some tank you can replace the fitting, on some you can.t

    depending on the crack you way be able to use epoxy although often the tank material doesn't stick. marinetex would be your best bet.

    if the hoses are original to the boat, they are likely well past their prime and you may want to replace that section.

    otherwise, if it was the hose itself, i agree with eric, rescue tape can be very useful, i always keep some on the boat.
  7. Fireman431

    Fireman431 Senior Member

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    If it's the flat side wall of the tank where the fitting is, remove the fitting and clean the outside of the tank and lightly scuff.

    Cut a flat piece of StarBoard or other flat plastic as a spacer/washer roughly 2" larger than the original opening. Cut the opening in the center for the fitting.

    Seal the washer to the tank with MarineTex Epoxy and allow to cure. Reinstall the fitting and hose.
  8. Pascal

    Pascal Senior Member

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    it's very hard to get anything to adhere to starboard. Marinetex will adhere but i woudl be reluctant to rely on this to hold a fitting/hose. Before installing the fitting, add 3 or for nuts and bolts to hold the starboard spacer to the tank since you can reach in thru the hole to hold the nuts.
  9. Fireman431

    Fireman431 Senior Member

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    I have had decent luck with Marine Tex and Gorilla Glue sticking to Star Board, but the hardware certainly would give a peace of mind as well. In fact, 4-6 #10 SS pan head screws would prob work just as well.
  10. Pascal

    Pascal Senior Member

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    Screws hold very well in SB but not sure about them holding in the tank wall, depends how thick the tank is
  11. Capt J

    Capt J Senior Member

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    If the fitting is bad, drain the tank, fill with a lot of bleach and water, let sit with the deck plate off, suck out bleach and water, drill out the fitting for a plastic thru-hull the next size larger, put the thru-hull in the tank with 5200 or marine-tex and tighten the nut on the outside. You might want to wear very long gloves for this.
  12. Capt Bill11

    Capt Bill11 Senior Member

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    I'm assuming it's a plastic tank. If so, the crack more than likely can be "welded" over.

    Plastic welding - Wikipedia, the free encyclopedia

    Plastic Welders and Repair Kits

    I've had it done to tanks before and it worked just fine.
  13. m2m

    m2m Senior Member

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    Google a product called Uniseal. Drill the hole one size larger and install the Uniseal which is a rubber flange fitting which will seal to the tank and the fitting using compression. Very easy and fool proof fix.
  14. Fireman431

    Fireman431 Senior Member

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    Obviously, there are a variety of ways to fix this leak. Your job will be to find the exact point of the leak and deal with it in the manner that works best for you.

    Best of luck and don't chew your fingernails afterward! :eek:
  15. adambomb

    adambomb Member

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    I have checked all hoses and it appears no leaks at these points ,is it possible that someone before me did not winterize the holding tank and they froze and cracked ? Do they cost alot to replace the whole tank or if I pull it out and find some thing should I try to repair ? Its looks hard to get them out I guess I haqve diconnect all plumbing by them to and remove shower and sink sumps?
  16. Capt J

    Capt J Senior Member

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    The plastic waste tanks are fairly reasonable in price.
  17. chesapeake46

    chesapeake46 Senior Member

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    Hi, When you started this thread you thought you had a leak.
    You never really found a leak though.
    Are you sure what your smelling, seeing is sewage ?
    Salt water, left to stand in the bilge can smell pretty bad, and get " snotty".
    Also some soaps, like dish soap in the bilge, not rinsed and removed, will smell pretty bad too.
    A dirty shower sump might stink as well.
    Before you tear out a tank, maybe re-examine the symptoms.

    Good luck.
  18. tirekicker11

    tirekicker11 Senior Member

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    and overcharging batteries.

    Wasted a day once to find a sewage leak before finding out that this boat had a bow thruster fitted with a battery that was overcharging. Smelled like rotting eggs.
  19. jhall767

    jhall767 Senior Member

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    Might be time to try some food dye in the tanks to see which, if any, are leaking. There are also leak detector dyes that work very well with a UV light.