Flipperman2a2w Member Messages 51 Reaction score 1 Points 6 Location North Carolina Jun 22, 2011 #1 Trying to learn as much as I can about this. . .
LLigetfa DIYer, not in the trades Messages 7,664 Reaction score 641 Points 113 Location NW Ontario, Canada Jun 22, 2011 #2 It looks like a pressure relief valve.
Flipperman2a2w Member Messages 51 Reaction score 1 Points 6 Location North Carolina Jun 22, 2011 #3 I think that must be it. Thanks.