Just an FYI...
From Aquasana water filter FAQ:
http://www.aquasana....roduct_faqs.cfm
We no longer use KDF-55 in drinking water filters because high levels of copper are not good for the brain. Some companies use silver to prevent bacteria build-up, but recent studies have shown that silver has similar health effects to lead. Silver collects in the left testicle or the left ovary and can cause hypertension, brain damage, and other negative health effects. Companies that use silver in their cartridges must register their products with the FDA as a pesticide.
I never knew silver was that bad to have around!
