[Cob] my 2 cents on the cob bathtub: 100 gallon mini-tsunami

[Amanda Peck]

Right.  And I agree with you that cast iron is a proper bathtub material.  
(if you wanted to be all natural, a big block of soapstone carved into 
bathtub shape might work!)  All I meant was that if you COULD make a cob 
bathtub, then suddenly cob walls MIGHT be acceptable to the people who think 
that mud is not a reasonable building material to do ANYTHING with.

That's why I put it as the LESS acceptable reason why we kept insisting on 
cob bathtubs.
..............
Ocean wrote, correctly (snipped):

Wrong, the 600-700 years of cob building experience has only proven that cob 
walls are excellent at resisting blown rain, with a good coat of lime.  
Standing water on flat surfaces or pooled in a tub is a very different 
thing.  I don't recall seeing 600 year old cob bathtubs anywhere in the 
literature or vernacular :-)