Howdy! I'm awful at forum activity and have been for decades. I'll pop in with occasional questions when I run into something vexing me. I'm the Facilities Assistant at a small aerospace business. We contract out for most of our major maintenance, but handle some things in-house. Some of those things involve plumbing tasks in an area stricken with some of the worst hard water I've ever dealt with. Sometimes a real pain in the butt rears its head.