water storage tanks
My parents had a guest house when I was a kid and I remember one guest complaining that he had feathers in his bath when he turned on the hot water tap.
Well the tank was in the attic wasn't in an easy to reach part of the roof, but being about 10 I managed to get there. The asbestos sheet (dont go there) covering the tank was broken and inside was about 5 decomposing bodies of pigeon chicks from a nest directly above, so there must have been poo and everytthing in the water going back a very long time.
A lot of old houses still have this design, and since then I REALLY try to avoid mixer taps in old hotels / guest houses for that exact reason.
Biting the hand that feeds IT
