I'm glad it's an option for you, Ron. You'll have to let us know how it goes. I'm going to look into it this winter when we have some other plumbing work done. Our water company bills us quarterly, and I'm dreading the next bill since we've been in such a terrible drought. Kelly >Hello, Kelly, > >Thanks for reminding me that such a thing exists. I think we will do >that next season, as we have just paid for repiping our whole house from >the street, which cost a bit. Had I thought of it at the time, I would >have asked about a sub-meter. > >Adding such a device will make a substantial difference. > >Thanks again. > >Ron