[Cob] Re: Screening clay for floors & plasters

[Lance Collins]

Where I am piles of dirt are mostly dry for about four months of the 
year.   It would never occur to me to sieve wet material.

I have an old chain link gate about 10 feet by 4.   I prop this up to about 
45 degrees and shovel soil onto the gate.  Pieces larger than about an inch 
roll down the mesh and smaller stuff drops through.  If I want smaller 
pieces I put a finer mesh over the chain link and sieve again.  And for 
very fine sieving I use a garden sieve over a wheel barrow.

It's also possible to sieve fairly moist material this way but a much 
higher proportion fails to drop though and has to be shovelled a second or 
third time.

I would recommend planning ahead and getting your clay sieved in the summer 
when it's dry.

Lance


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