The recent stories about contaminated tap water have me spooked. I am not normally of the tin hat persuasion, but after buying bottled water since this was in the news I keep thinking about water purity. Having looked at the Brita filters, I am not sure they would help if there were poo in the water - or whatever it was that caused the recent problems. Water testing kits on amazon seem to just test for things like iron or ph values etc. Has anyone looked into this?