You do WHAT with your poo?
We made the decision to have humanure compost toilets inside and out! We like them; it means we are dealing with our own waste, you get compost out of it at the end (returning veggie scraps and food waste back to the earth). We´re also not wasting gallons of drinking water every time we flush and also we haven´t got to worry about plumbing for black water. Sounds like a winning decision if you ask me!!!!
We already have an outside toilet (well, a bucket with a toilet seat on top). We just needed to create our compost bays, gather the materials, and set ourselves up to be able to begin composting our humanure.
As an aside, we were massively proud of ourselves for getting the straw. Someone told us there was a man named Paco on the road out of town that sells hay and straw. They were our only directions. Well, we only bloody went and found Paco on his tractor in a field and managed to buy some straw from him! I don´t think I´ve been that proud of myself in some time!
Ahem, anyway, after filling the bay with straw and supporting the front with planks, the bay is ready to receive some caca! Although, of course, this being us, we hadn´t really thought through the position of the compost bay (we thought we had. We were wrong) and decided to move it to a shadier spot before filling!
The compost toilet itself is really simple. There´s a wooden box with a toilet seat on it. Inside there is a bucket. You do your business; toilet paper, urine and solid waste into the bucket and you cover your ´doings´with a good amount of sawdust. When the bucket is full. Put the lid on it and take it to the compost. You also need a good amount of kitchen scraps (veggie peels, egg shells, dinner leftovers etc) as well as green material (weeds pulled from the garden) when adding to the bay.
Down at the bay you make a hole or bowl in your hay (carbon material), empty your kitchen scraps (broad range of nutrients and micro organisms), then layer your weeds (nitrogen material, plus broader range of nutrients) and on top, empty your humanure from the bucket. Cover the ´bowl´with plenty of hay and water and leave it do its thing. We keep a compost thermometer in the mound to check that the compost is reaching the correct temperatures.
And there you have it, pretty simple.
You collect into this bay for one year or until it is full. And then you simply begin a new bay. I recommend reading the Humanure handbook by Joe Jenkins for the ins and outs of creating a humanure compost system (it´s well written, funny and has all the information you need. you can also read it chapter by chapter online). Recommendations are that you leave your humanure for two years before using it. You can get a sample checked in a lab (there is a place in town here with us) to check for any remaining pathogens. We have decided to work on a three year cycle just to be sure, and to cover ourselves in case anyone is ill during the year that those extra nasty bugs are properly gone.
We currently just have an outside toilet, but eventually we will have additional ones in our indoor bathroom as well as just off the bedroom.
We were a little worried about smell. But we have been surprised by the total lack of smell. Nothing from the toilet, and nothing from the bay. And it has been hot. We are in the south of Spain with very little rain and so we were expecting at least a little whiff. But nope! Nada. Zilch!