Hi
Hmm, possible, but sounds like fetid urine, it goes brown when left.
Harpic will shift it if it is.
Glad my Harpic tip is helping so many people
Regards
Martin
REPULSIVE ODOR; changeable color; brown, acid. ENURESIS; dribbling, OFFENSIVE URINE OF OLD MEN. Excess of uric acid. Vesical catarrh from suppressed gonorrhoea.
ooooo nasty !!
this could be about right and me initial idea of rust maybe way off but I didn really time to take long look as time was against us.
will give the Harpic a splash n Dash