When I lived in Midland Texas, we had to buy bottled water. Water from the tap had oily taste, look and feel. Like baby oil. It was disgusting.

My aunt lives on Chickahominy River in Virginia and has Artesian well. Best water I have ever tasted in the US or UK.

Living in South Eastern UK and we had to get a filter jug. It is ok, but not the best. I refill old water bottles to carry around with me. I did have a nice aluminum hiker's bottle, but it got a funny flavour in it that I could not dispel.

What I want to know is what happens to all the empties after marathons, where water is supplied in bottles?