By the way, "lead-free" plumbing contains as much as 8% lead, and only in the past decade were the regulations tightened so that "lead-free" plumbing must be a

By the way, "lead-free" plumbing contains as much as 8% lead, and only in the past decade were the regulations tightened so that "lead-free" plumbing must be a weighted average of 0.25% lead or less.