snosptz 0 Report post Posted July 14, 2014 This white tube in the photos for lack of better description is leaking at the seam in the center. What is it for and where can I get a part like this? The Hot water heater is a Atwood 6 gal. Model EHM6-SM, serial #93891701084. I have looked for parts for the water heater but they show nothing for parts on the exterior like this. Any help would be appreciated. Thank you Share this post Link to post Share on other sites
kelleyja 0 Report post Posted July 17, 2014 It looks like a check valve, you should be able to pick one up at your local hardware store.... you could remove it and leave it out, its certainly not required. Share this post Link to post Share on other sites
Rip5 0 Report post Posted July 17, 2014 Not positive, but I believe it is a check valve/backflow preventer. I see it has a description and part number on it, but I can't read it from your pictures. I would search for that part #. Also, these Attwood heaters are the same that are in most RV's. Any RV store will have one. Get the metal/brass one instead of plastic when you replace it. Share this post Link to post Share on other sites