Week ten and all is well. It still baffles me how the ever larger bucket of poo can remain free of aroma. Spring is here and there has been the odd time when the wind has dropped enough for the rotorcowl to stop rotating. This has enabled me to access the end of the vent pipe and apply the nose. Those familiar with horses will recognise the smell, the tangy perfume of the heap, not unpleasant and not overpowering and certainly not a sewage smell. It soon carries away on the air and after a couple of feet it is almost gone.
Inside remains sweet, the 20 litre bucket is a little over half full. We have not made any effort to use other facilities so it looks like lasting at least three months, perhaps more. This means that as yet there has been no opportunity to explore the next phase, that of finishing the composting. Cleaning remains easy, using a wipe and paper towels to polish off. The scale blocks in the front section have almost dissolved. I use two at a time and so far seem to be lasting about a month. A quick swill with water a paper towel brings things clean and shiny and perhaps is not really necesary but keeps Mrs B happy.
The fresh water is still lasting much longer (20%), no smell, warm and comfortable and no chemicals into the environment, brilliant all round. Should have done it years ago. It's the first time in years that I haven't had to think about toilets, sewage tanks or portapotties. What joy.