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We are saddened to announce the passing of Gary Bunzer on April 17, 2020. We hope the RV Doctor website will continue to provide helpful information for you. Thank you for your interest and support for the RV Doctor - Debbie, Heather and Gretchen

Monday, November 23, 2015

RV Water Heater Stripped Threads On Drain

I have a water heater on my RV that I had to use a impact wrench to undo the drain plug. I read in one of your articles a reference to a thread chaser or tap. Could you please let me know where I can buy this tool. I've checked plumbing outlets, machine shops and big box home stores. I have checked with a couple of local RV super stores with no luck. Your help would be appreciated! Sonny B.

Sonny, if the NPT size of the threads is 3/4-inch, you can use a standard, tapered pipe thread to clean out the female threads. Just don’t cut too deeply; only enough to restore the threads in the tank. The tank threads will be a whole lot softer, so go slow! Here’s a link to a pipe tap that should work, though I'm sure any brand will do the trick.


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