On Oct 7, 2012, at 1:14 AM, cdb wrote: > does he wear a nappy for three days, and does=20 > anyone have to change it during this period? The text mentions a tube for water in, and another for 'water out'=85 I might be a little worried about the latter being rather conductive; I ass= ume that both tubes are carefully shielded. BillW --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .