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On Wed, 6 Apr 2016 00:43:53 +0100,
Hils wrote:

These manufacturers of compost toilets recommend leaving poo to compost
for at least a year before doing anything with it.

Not enough.

And much depends on the meteorological conditions. This year, our
compost takes much longer to “ripen”, than last year.

They have devised an ingenious way of separating urine.

Several systems have been developed that allow the separation by
mechanisms or specially designed toilet seats.

How they are useful depends on where the toilet is used and in which way
the dry material is added. Because the only purpose of these techniques
is to avoid a stench of ammoniac.

Be surprised, as nothing special is needed to separate urine from “the
rest”, if the container is well aerated and after each emptying a good
layer of dry material is provided at the bottom. This way, the
separation happens by gravitation.

The only smell in our toilet is that of humus from the dry leaves. Saw
dust from oaks smells better, but decomposes much slower. Saw dust from
pine-trees smells even better than that, but will decompose even slower.

We had tried wood cuttings from the garden shredder which are ideal in
the final compost, but do not really do the job in the toilet.

Anyway, bad smell is not an issue, if you do it right. And no mechanical
separation whatsoever is needed, if you are not into commercializing
complicated, state-of-the-art, designer-compost-toilets.

Michael
--
Location: Lower Normandy (Orne), France
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