Adam Klaus wrote:I totally agree with your preference for a bidet over toilet paper.
To your question, it is going to be problematic because you just cant put all that water into a compost toilet system.
If you want to get rustic, a hose works. Not really acceptable to your sanitary enforcement people, but cleans your backside nicely.
Dale Hodgins wrote:A warm glass of water, poured into the hand as required is safer than those jet things and the temperature isn't a surprise every time. TP first, then the water.
Adam Moore wrote:Hey Lisa, I use a bidet toilet seat attachement that I bought on Amazon for about $30. It is currently hooked up to the water supply inside my house. My family loves it. We use much less toilet paper and it is more sanitary. I had the same idea about using it with a composting toilet. What you need to do is get a cheap garden tank sprayer for about $30 and remove the sprayer. Next just splice the two tubes together, or if your lucky the bidet tube will be the same size. A home depot should have the proper attachements. All you would have to do once assembled is attach the bidet to the composting toilet seat and make sure the tank has been pumped to build pressure in it. I experimented with mine a while back and it works fine. My plan was to use a urine divertor for just the urine to make sure it doesnt get too wet. The bidet water would fall into to the bucket. But the bidet really does not use that much water. My family does use a bit of toilet paper to dry off but you could hang a small towel for each member of your family to pat dry with. Another item I use is a squatty potty stool. All it is is a stool to help you get into a squatting position to help eliminate waste. My daughter had elimination problems and this helped alot. So I would definetly add some kind of pull out stool. I hope this doesn't sound gross but when you are able to completely eliminate quickly then there is less need for toilet paper or spraying.
I also think there is better options than toilet paper and the bidet has worked for us. I hope this helps.
Bill McGee wrote:Adam, in my reading of Jenkins handbook and forums he is very opposed to urine diversion. The nitrogen in urine seems to be the key in thermophilic composting. My understanding of Jenkins bucket method is that the operator would add more dry cover (sawdust or straw) to adjust for moisture with the goal of keeping the pile hot. (you could also tarp the pile to keep rain off as needed.
Are we talking about a commercial composting toilet or Jenkins 5 gallon bucket and pile method?
Adam Klaus wrote:sorry i was unclear about jenkins' tech and the urine. what i meant is that water is a problem for the composting process. urine has lots of nitrogen that makes it a useful addition. but any extra liquid in the system is going to slow down the compost and push things towards anaerobic, which will be a mess. that concept, i thought, came from Jenkins' book, but it may have just come from my personal experience and i am misattributing it.
i live in an arid environment, and have used both a commercial sunmar composting toilet, and a 5 gallon bucket system. in both cases, too much moisture has always been the biggest problem for my humanure compost. i pee in the composter only about half of the time, otherwise it just gets to wet to stay full aerobic. ymmv.
So maybe adding a bidet would only work with an outhouse type configuration then? Dig a deep hole under a moveable outhouse and let the excess water seap into the earth?
Back to the bucket system though, what if two buckets with two toilet seats were used? One for the elimination and then scoot over to the second seat with the bidet and clean off. It would still be considered black water but maybe easier to dispose of in a covered hole dug in the woodlot somewhere? Just trying to think of ideas to make it work. Many times the bidet and toilet are two separate fixtures anyways.
Adam Klaus wrote:Although Paul isnt a huge fan, do make sure to read Joseph Jenkins' Humanure Handbook. He will explain why any extra water in your humanure compost will be hugely problematic. This is why we divert urine from composting toilets, it is the water. Having used a composting toilet year round for five years, I really do not think that even a small amount of water from a bidet would be viable for your compost.
Using a urine diverter, that would work. The bidet water would dilute your urine, and you could then use that as is on non-edible plants. So long as freezing isn't a big concern, this should work great.