How do I properly install the condensate drain?

To connect a condensate drain, attach a pipe of at least 1/2 in (inner diameter) to the fitting located at the bottom of the water heater. The pipe must be made from corrosion-resistant material such as PVC or CPVC and should slope downward with a minimum pitch of 1/4 inch per foot. Direct the open end into an appropriate drain, as described on page 26.