Repairing a Broken Water Heater Drain Plug

Duration: 2:02

A broken water heater drain plug on your RV can be a hassle to repair, depending whether your plug is metal or plastic. In this free video, Dave Solberg teaches you a couple quick solutions for removing a corroded or broken plug from the exterior of your RV’s water heater. You’ll learn how to diagnosis your particular issue, and discover the simplest way to fix and replace the drain plug and get back to enjoying clean hot water!

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9 Responses to “Repairing a Broken Water Heater Drain Plug”
  1. Benigno Garza
    Benigno Garza

    My unit is a 2017. At first I had plenty of hot water but now, not so much. With out spending money that I don’t have, how can I get more hot water coming out. Thank you Ben Out.

    • Customer Service
      Customer Service

      Dear Benigno,

      Thank you for your patience. In response to your question-

      The water heaters have a set temperature on the thermostat. There is no adjustment that can be done to make more hot water come out or to change the temperature. The problem is more likely the heating element is bad or the flame is not set correctly when trying to run on gas. You could also have a bypass valve in the wrong position on the rear of the tank or one of the valves is bad. If you are still getting hot water but it doesn’t feel like it is much, most likely it is a problem with the valves but I would troubleshoot everything else as well. We do offer some great troubleshooting videos, I will post a link below to them.

      RV Repair Club Technical Expert

  2. Larry Walburn
    Larry Walburn

    We bought a camper with a broken plastic plug , I used an easy out for pipes it came out very easy. The people had tried to pound in a big screwdriver but that didn’t work.

  3. Richard Larew
    Richard Larew

    When this happened on my plastic plug, I heated a 1/2″ socket extension, melted it into the plastic hole, cooled and turned out the plug.

  4. Michael Hudspeth
    Michael Hudspeth

    Rather than risk damaging the threads on the tank when removing a stubborn plastic drain plug, I have found that drilling out the center of the plastic plug and heating an old screwdriver with a propane torch works well. Laying the hot screwdriver against the drilled out hole quickly melts the remaining plastic plug down to the metal tank threads without damaging the metal threads. At that point it is relatively easy to pry the plastic plug loose for removal.

    • Customer Service
      Customer Service

      Hello Tamitha,

      Thank you for contacting us. Great question! The ‘Ask an Expert’ section is currently for members of our online community. By becoming a member, you will have access to our expert’s knowledge in RV repair. With your membership you will also receive discounts on products and hours of Premium video content.

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  5. Larry H st. Louis
    Larry H st. Louis

    first thing I did was get rid of plastic drain plug. Installed short galvanized nipple and connecter a short steel braided toilet supply line with a shut off. Makes for easy draining and gets the water out of the cabinet space. And no more drain plug.