"Dale Botkin" Wrote: > I have one -- I think it's a Moen. With our water pressure at least it is > something less than a stellar performer. Nearbyb toilet flushes are > still a character building experience. Yeah, that's why I think the unit should have a little mixing tank, the water temperature and pressure can change faster than the valves can keep up, or else the valve controllers are underdamped and swing around hunting for the setpoint. A little mass in the system would help compensate for that. 3/4" pipes to your bathroom also helps this problem a lot. Mine are all 1/2" -- Lawrence -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads