According to the author of 'Yorkshire Privies' (Markham, 1997), urine
was the alkali used in the alum preparation at Sandsend. The works
there used 28,288 gallons of urine in just two months during 1612, the
liquid being transported from London in large barges.
That's a lot of pee.
>I was wondering Martin if some of the coastal briquetage we find was
>used for other than draining and drying salt. But from your description
>would certainly not apply to alum. I guess the alkali was probably
>Thanks for the reference it sounds like an interesting paper I should get.
(Awaiting the jokes about taking the piss out of London)