My home has these clever inwall tanks for our toilets that are great for saving space, but Crane no longer carries parts. The ballcock mechanism refused to adjust properly and would not shut off completely, so I had continuous runoff into the overflow pipe – After a year looking for parts, I decided to research alternatives. Replacing the whole system was not an option. I found I could order part number 1 from the Geberit Tessera System and rigged a way to support it against the wall of the tank. Go to http://www.guillens.com/Geberit/Tessera_Part_Page.htm for details. It works perfectly! Feel free to send me an email if you need further information (melroseasset@rcn.com)Geberit -Tessera_Part_Page
melroseasset@rcn.com