keith s elliott wrote:Dawn, the unit I have in the cabin sounds something like what you have. There is a regular looking toilet upstairs with the drum receptacle immediately below in the utility room. It connects with the usual 4" plastic pipe. Way back when, I seem to recall having the occasional issue, and that revolved around the drum getting too much liquid accumulating in the bottom.
I never add water to my composting toilets any more - haven't done so for years. The drainage problem doesn't seem to exist any more. Once you get used to these composting toilets they are so convenient and trouble free that I don't know why everyone doesn't use them.
I empty the tray maybe every two or three months at the most. It really is so little work. I keep a 5 gallon bucket of shavings in a small cupboard in the bathroom and use a sugar scoop to add the shavings to the toilet.
keith s elliott wrote:Originally I was also going to have two toilets and the one drum. But never hooked the second toilet up. Still sitting here in a box unopened!
At the end of every day I turn the handle 21 times. That is three full revolutions of the drum inside. Every time I empty the tray, about every 3 months or so, I immediately fill it up again from the drum and let it decompose until the next cycle. Honestly, there is hardly any smell of any sort from the tray. It smells more like fresh earth than anything.
In order to avoid using water with the separate toilet type, just hold the lever open while you're attending to business as it were. The less liquid, the better the system works. Do you have the little muffin fan in your vent stack?
keith s elliott wrote:Yes, it's probably a little muffin fan that is inside the bottom of the vent pipe. At least it is on the SunMar.
I don't understand why you are having your drain overflow all the time. You must be putting too much liquid in there. Yes, peat moss is a big help...the coarse kind is recommended. You can add stale slices of bread, planer shavings, small amounts of sawdust etc. It all helps.
Is the toilet and receptacle sitting dead level?
Once you get the liquid under control, I'm pretty certain the odour will vanish.