The copper pipe was 6 inches too short so we had to remove the old one and sodder it on to the new water tank.. no one tells you tou have to buy the water tank separately. But when I called to complain about my one year old hot water heater, customer service was very nice, once I really pushed them. The oroblem is, there is very little competiition for Insinkarator. So they dont do a stellar job on quality control.