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There is a very unpleasant odor in the cabin of my Mk V that I have been chasing since I bought the boat last July. On the advice of several people, I changed all of the hoses associated with the head and holding tank. I have literally cleaned every nook and cranny that I could get to. For a while I convinced myself that the smell was basically gone. I think the fact that the cabin was open so much while I was working on it allowed air to circulate and thus the less odor. Now the odor is back. It smells like it is coming from the forepeak area. Any ideas of where to look and what the cause might be? Summer is coming and the heat will make the odor near unbearable. Gary
Gary
Mk V, #512
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1. Have you read the article on odours in Black Arts? Sometimes it's not all in your head, so to speak.
2. Have you tried removing all the soft furnishings - cushions et al - for a couple of days, then checking back? Cushions might be harbouring mildew or some odour-generating vileness.
3. We had a mystery pong in Towser's forepeak. I fixed it by a) replacing the o-ring on the holding tank, which looked fine but may not have been doing its job and b) although the area looked clean, power-washing the area under the berths and everything connected to that area (as far forward as I could reach under the mast). I don't know which of these was the winning move, but the smell disappeared in the wake of these two actions.
David Weatherston
Towser, Toronto
C&C 27 Mk IV
David Weatherston
Towser, Toronto
C&C 27 Mk IV
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We have taken all the "soft" stuff out and, in fact, cleaned everything. That said, I plan to take all of the cushions out again this weekend. I'm not familiar with the article or publication that you mentioned. Is it an article somewhere on the web? We re-worked the head and holding tank completely last summer. It is empty and it hasn't been used since then. Gary
[Click on the black 27 at the top of the page or the Home link to go to the main part of the site, where you will find Black Arts. As a matter of interest, did you find this Forum without passing through the main body of the site? If so, this needs to be addressed. - Admin]
Last edited by (2006-02-16 03:54:10)
Gary
Mk V, #512
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I have a C&C27 MK V since last summer. I had odor problem too. It was caused by water trapped under the floor in front of head. There is no way for water getting there to escape toward bilge. I had to cut an 5 inches access port in the floor to remove water help drying. Water was there since a while, so it was not very clear... ;-) After a look at the archives from this forum, and my own investigations, I found leaks. In fact there was two sources: a portlight the previous owner has added and the evacuation hole in the anchor compartment. Water was making its way between the compartment molding and the hull, and was accumulating under the floor in toilet room. I fixed the second problem adding a small hose in the hole going from the compartment to the exterior, and sealed it with sikaflex. Be careful if you are planning to cut a port in toilet room floor, there is some plywood supporting it.
I hope this will help you
Best regards,
Yves
[A great little bit of detective work. Please let us have your boat's name and your last name so I can give credit when I add this discovery to Black Arts. - Admin]
Last edited by (2006-02-16 04:01:49)
Dear Admin,
my complete name is Yves Chiricota. My boat has no name yet. I'm still
searching ;-)
Regards,
Yves
My MKV stunk for the first two years. Problem 1) the previous owner had a holding tank overflow. Clealing that up - YUK! Problem 2) water under the liner under the head. We had a leaky thru hull for the speedo. I fixed that, and once the water was gone the smell went away. I have hull #69, and there is a drain hose from the space under the head leading to the bilge. The older models did not have that, so making sure no water gets in there is very important. Finally, the boat was just plain dirty when we bought it. After five years of cleaning the smell has gone away.
I found the same problem that Yves noted - I have a 1985 MkV. If any water gets under the floor in the forecabin area - under the liner - there is nowhere for it to go. There is no drain back into the bilge. So the water stays there, smells, and rots the bottom of the forward bulkhead. To stop the water getting in, seal the chainplates where they go through the deck, and the babystay mount. (Watch for rot in the balsa cores where these go through the deck if there have been any leaks). There is another stange place where you can ge an unexpected leak. The anchor locker is a separate moulding with a drain that goes straight through the stem - its about a 3/8" hole. Trouble is, they didn't seal the anchor locker to the hull very well, so water in the anchor locker may drain down under the forcabin instead of going overboard. Also if the forestay/deck joint leaks (mine did), that will drain into the anchor locker, and if that leaks, into the forcabin. Test - have someone throw a bucket of water into the anchor well, and watch through the compartment under the forward berth to see if any of it comes in. Remedy - seal the joint between the anchor well and the stem of the boat (I used epoxy) - where the overboard drain goes though. When you have fixed all the leaks, keep the area under the sole of the forecabin as dry as you can. You can get at it through the inspection hatch under the forward berth, and also under the forward sink if you have one. If anyone has figured out how to install a permanent drain from this area to the bilge, without damaging the integrity of the bulkhead and keel joint that is right in this area, I would very much like to know.Dragonfly C&C 27 Mk V
Dragonfly C&C 27 Mk V
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We bought our 1985 Mk V this time last year. She stunk to high heaven when the weather warmed up. I found that the previous owner had a holding tank over flow and cleaned that up. I also found several hose fittings for the head were loose.
After a year and several quarts of bilge cleaner, and holding tank enzyme starter poured into the bilge the cabin still stinks. I even went so far as to buy a long bottle brush to reach under the liner so I could scrub away anything that may be the cause.
Since the smell remains, and it seems from this post, that the problem is the standing water under the liner in the head, are there any ideas on installing a weep hole (or larger) into the main bilge? Are there structural, or other problems with doing that?
Sorry to hear that you haven't solved the problem of the odor yet. Our latest endeavor was to use a solution of baking soda and water. We are laos installing a new holding tank and have changed all of the hoses. Keep me posted if you get any other ideas. I like the idea of the weep hole but am afraid to drill one for fear of what I might hit. GaryGary
Mk V, #512
Gary
Mk V, #512
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