Oh, it’s just so embarrassing!
It’s happened to all of us at one time or another. You invite your special friends for a weekend on the boat they arrive full of expectation but as you unlock the cabin door, everybody recoils at the smell!
Why do marine toilets smell so bad and stink the boat out? Especially when she’s been left for a week or two?
Just like all the rest of us, you’ve tried everything to fix it. Bottle loads if bleach or disinfectant down the head (how good is that for the marine environment?) and loads of flushing - all to no avail.
Truth is that nobody’s really worked out why it happens. Until now!
Everybody thought it’s what goes into the toilet that causes the problem. Fact is that it’s the water you’re flushing the toilet with that’s the main problem!
Sea or river water is full of living organisms, like, algae, plankton, microscopic bacteria, etc.
When these organisms go into the inlet pipe of a marine toilet they’re starved of oxygen and light, so they die and decompose.
That’s the smell!
And as we all know, the longer you are away from the boat, the worse it gets.
Even if you flush with fresh water you can have the same bacterial problems in the sanitation hoses and still end up with a smelly marine toilet because of smelly sanitation hoses running through the bilges. Trouble is that marine sanitation hose is porous and minute bacteria can actually penetrate the structure of the hose itself.
And that’s why masking the smell, or using gallons of bleach, does not work - and it’s harmful to the environment too.