Looking for address for well saver. Our tank has gone bad and want to check out the warranty and purchase place says cant look it up

I'm not certain about this, but I don't think the Wellsaver tanks are sold under that name anymore. You can try this site as a starting point.

A. O. Smith Water Systems (http://www.wstanks.com/)

For more information on Perma Tank, contact:Water Systems - An A. O. Smith Company500 Tennessee Waltz Parkway Ashland City, TN 37015800-365-4300

5 year warranty on those tanks.