[Cob] cob bathtub

[Amanda Peck]

Definitely experiment.  (I'll join you in thinking that bath tubs are good)

Even if this were like making a cake, where the basic ingredients method of 
mixing and temperature are pretty well set in stone, you'd have to do some 
tests to see how YOUR soil and clay and sand worked together.  I think it's 
a lot easier going than cake baking, although not as free-form as a salad 
with greens raw and/or cooked vegetables and vinaigrette.

Gernot Minke's house in Germany apparently really does have an earthen (with 
organic matter [oil straw sawdust?] stabilized earth [concrete or asphalt 
emulsion?] nothing but clay/sand? what coatings???) powder room sink.  
Probably not used a whole lot, can easily be made so that it drains quickly, 
maybe the perfect "holds water/made of cob" vessel.

Natural Home or one of those fairly high end, written by professional 
writers who don't know what we'd be interested in and sometimes don't know 
what they've heard anyway, magazines last summer had a good-sized spread on 
Minke's house.
..............
Lucynda wrote:
  It sounds like something i will have to expiriment with before i attempt 
to sell my husband on it further.  My main reason for wanting to try it is 
because I am a major bath junky figured i could do something large and deep 
and really cool with a material that flexible.  i guess i could make a mini 
tub and coat it with oil and fill it with water once a day for a while and 
see how it holds up.
  The local fitness center has a jacuzzi built into the floor thats lined 
with mosaic tile and grout.  About 6 years ago the tile started breaking 
loose and the grout had to be redone.  i no longer have a membership there 
so I don't know if it held up or not.