Sewage Smell in Boat

Walterv wrote: Questions:

First off: How long should one expect the sanitation hose to last before it permeates a smell?


Anywhere from 3 months to 7(+) years, depending on the hose being used.

Second:
I understand that there are “cheap” sanitation hoses, and better ones. How does one identify if they have a “cheap” hose, or a good one?


Actually, there isn't any easy way. The obvious would be to avoid the corrugated, thin wall hose that resembles vacuum cleaner hose. Aside from that, you'd have to know which are the good ones and which aren't the good ones. Usually there is a brand name and part number stamped on the side of the hose.

Third:
I have white hoses and Dave has “black” hoses” I think I read that one of those (white or black) was the better sanitation hose.


Color makes no difference; it's the actual construction of the hose that matters. The only ones I currently recommend are Trident 101 and 102. One is white and one is black; I can never remember which is which. But they contain an outer layer and an inner layer, with a biocide in between the layers. That is the best. Next would be SeaLand's "Odor-Safe" hose. They are all relatively expensive, in the neighborhood of $8 or $9 per foot.

Forth:
Is there any scientific method of pin pointing where the smell is coming from, or is it just start replacing hoses, pumps, etc?


Not really, just methodically eliminate the obvious. Look for seepage at every joint in the hoses. Be sure there are no leaks at any fittings at the head or the holding tank. As was mentioned earlier, rub a damp rag along the bottom of the hose running from the head to the holding tank. Then remove the rag and smell it. If the rag has picked up the sewage smell, the hoses are permeated and will have to be replaced.

Also, be sure the smell is actually a sewage smell. Oftentimes, stuff growing in the cracks and crevices of the bilge will give off a horrendous odor as well. A small pressure washer and a Shop-Vac will help a lot in that area.
 
We started to notice an odor this year. I’m guessing my hoses are original (22 years) so I plan on this being a project to do before next spring. The threads on my deck fittings are also worn out so I plan on replacing the deck fittings too. My runs are short and I am going to try and feed from the deck holes then attached new deck hardware but who knows how it will go!!
Niles
 
quote:

Originally posted by dmunneke

I changed my hoses out and it was a real bear.. I pulled and pulled on the old ones.. Finally is came out with a huge chunk of silicone and a bit of wood.. Pushing the new one back in was much easier but tedious..






And I replaced all of mine in an hour or so. It depends on the boat.
 
When I first replaced my holding tank and hoses as well as the shower sump and hoses I removed the rug, ended up cutting 1 large section of the hall floor out and a smaller section where the shower sump is. Then this allowed me to completely clean the bilge and paint it after it was sanitized. When I was done we put reinforcement strips in to screw the floor to. After screwing the floor down I rolled the carpet back in place and tucked the corners. We use the shower quite a bit so the sump gets cleaned at a minimum once a month. I usually take the lid off the sump box and scrub it clean and take the crap loaded filter and pressure wash it off of the boat. Then I run some bleach/ distilled with water through the box. I also pour CP and Orderless down the shower drains every week. Perhaps it is overkill but no odors in 5 seasons now. Same with cleaning the front bilge I take up the floor twice a season and with a small hand pressure wand clean everything off so there is no slime. I even spray bathroom cleaner with "Clorox anywhere hard surfaces" in and on the hoses and Poly tank as well as the front bilge. I installed a large inspection plate on the waste tank and can also pressure wand it clean while the pumpout boat waits.

Bill
 
Just Curious, when I go to pumpout and apply suction from pumpout.
Shouldn't I feel suction at the vent location outside the boat?
If I don't that could mean the vent is clogged?
 
yes, you should definitely feel suction at the vent, how much depedns on how strong the vacuum is. sometimes, I can actually hear the suction.
 
If you're sucking waste out of the tank, air has to replace the waste or you will possibly colapse the tank.
 
quote:

Originally posted by mandm1200

If you're sucking waste out of the tank, air has to replace the waste or you will possibly colapse the tank.






A slip neighbor was having trouble pumping his holding tank and it turned out that he had a loose hose connection. The pumpout machine was just sucking air through the leak and not getting the sewage.
 
currentsea

regal did not install a vent filter on our boat. the vent is a 1" line. easy to see if yours is a holding tank problem. flush a 1/2 gallon of bleach down. if the smell persists and you dont' smell the bleach its nothing to do with the holding tank.

we did have a very small diesel leak last summer, it wound up in the bildge water. because it was so small the bildge never smelled like diesel, but as the fuel decomposed it smelled like sulfur dioxide and wow what a smell. cleaning up the bildge was an easy fix after i figured out how the smell was getting there.
 
I had a stinky bilge this summer. Traced it to a loose hose clamp where the hose from the toilet attaches to the holding tank. Raw sewage in the bilge! Yucck! Had to wash the bilge from stem to stern to get the smell out.

Larry
 
Larry, situations like that are why marine plumbers often charge $100(+) per hour. It ain't no fun!
 
Vic, If my current business fails due to the economy perhaps I will look into getting training from the ABYC which I am a member and working on boats sewage systems. The smell doesn't bother me I drove a honeywagon (septic truck) as a teenager as my summer job. It got to the point I could eat my lunch sitting on the top of the tank with the hatch open checking the level. Boy I hope my business continues to do well!
Bill
 
as i often say, after diapers working on a head is not so bad...

oh, by "after diapers" means as parent of a baby... not adult diapers...
 
quote:

Originally posted by PascalG

as i often say, after diapers working on a head is not so bad...

oh, by "after diapers" means as parent of a baby... not adult diapers...






Sure am glad you clarified that one Pascal...
 
When my daughter flushed 8 tampons down my head and I had to take apart the vacuflush I think I can handle anything.

My friend has a septic business, I think they put vicks vaporub under their noses to help.
 
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