I was able to find this previous post here: http://www.terrylove.com/forums/show...t=3476...still have a couple of novice questions.
1. Is it necessary to drain the water heater when installing an expansion tank? 80 gallons is a lot to discharge, and we're under severe drought restrictions right now.
2. Can the expansion tank be located anywhere on the cold water line, or is there a preferred location? My only available location to stick this puppy is a crawl space just after the pressure reducing valve.
If anyone has any additional guidance, do's or don'ts, please share!