[RickM]

A few years ago a news program tested NYC, Poland Spring, Northern NJ and Evian water.

The order of "drinkability was in the above mentioned order.

I have one of those Omni House filters seen at Home Depot...not expensive at all. It's basically a chacoal filter, When I replace the filter every other month there's a quite a bit of sediment and other assorted residue. So it seems to be doing the job. I believe it states reduction in iron and other taste altering debris. Some cartridges filter chlorine and lead as well.

The problem with these simple systems is that if the filter is in there too long your water will be as clean as if passed through a dirty sponge. Not pleasant.