Gas Hot Water Heater-drainage Home › Forums › Archives › Old Bulletin Board Archives › Gas Hot Water Heater-drainage This topic has 0 replies, 1 voice, and was last updated 22 years ago by maxplanck1. Viewing 0 reply threads Author Posts 27 Feb 1999 at 2:44 pm #280586 maxplanck1 Outside drain pipe for Hot Water heater is constantly dripping water. Seems to be an extreme amount. Plumber replaced TPR valve about 4-6 mths ago. Is this normal? Should it drain constantly? Thanks. Author Posts Viewing 0 reply threads The forum ‘Old Bulletin Board Archives’ is closed to new topics and replies.