Hi All: I recently had a e-mail conversation with a water testing company suggesting that they come up with and offer an espresso specific water evaluation. A simple thing: you send a sample of your water, they evaluate it with reference to best coffee and machine care. Anything not related to this would not be tested for. They were looking into it but I thought I'd ask if anyone else thought this a useful idea or know of any such service existing now.
KDM



