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Old 03-18-2014, 08:08 PM   #1
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Suburban Water Heater anode

Previous owner evidently removed and changed the anode rod. Must have stripped the threads as the leak. I removed and added Teflon tape, tightening as much as I dared. Have googled and a 1/2 NPT thread chaser/cleaning tool was recommended. It doesn't seem to exist, I have the NPT tap and have tried it but not enough meat. What recommendations/options does anyone have? My obvious choice is to replace the entire unit but it works perfectly. BTW to fix the leak I employed a short term fix was to use a twist in rubber plug, but certainly not at permanent solution. Thanks
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Old 03-18-2014, 08:19 PM   #2
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Is there anything you can coat the worn threads with, let it set, then chase with the tap? I can't think of anything other than JB weld and I don't know if that would work, but I'm sure there is something that would bond to the old threads and accept the tap without coming off.
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Old 03-18-2014, 08:26 PM   #3
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A quick google search and there are definitely quite a few products for doing just what you need to do.

http://www.amazon.com/Loctite-Form-A.../dp/B000WSEUII

Loctite Epoxy Weld Bonding Compound from Loctite Adhesives
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Old 03-18-2014, 08:30 PM   #4
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how is a rubber plug sealing under pressure but not the anode rod with Teflon tape?
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Old 03-18-2014, 08:46 PM   #5
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Assuming there are some threads left in the tank connection, and you have cleaned them up with the tap, You could try the following:

New anode rod

Apply a light coat of heavy-bodied pipe dope (Slic-Tite PTFE or similar)

Apply 5 to 6 wraps of "GOOD" Teflon pipe thread sealant tape (Mil grade)

Apply a heavy coat of heavy-bodied pipe dope (as above)

Insert anode rod into tank, tighten 1 to 2 turns past hand tight using a 1-1/16"
socket and ratchet with an extension

Wait 24 hours before adding water and pressurizing tank

If it still leaks, tighten 1/2 turn at a time until it seals

I do a lot of stainless steel piping (stainless steel pipe and fittings are extremely difficult to work with and seal) and this will generally give a tight seal.

Rick
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Old 03-18-2014, 09:51 PM   #6
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Thanks. I will try when I get home from morro bay, ca coast. Rubber plug has a a t-handle to tighten no drips. Not enough threads to restart a new anode. I tried. I may try the loctite product. Never gave that a thought.
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Old 03-18-2014, 10:29 PM   #7
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Call and check with a plumber. Surely there's a permanent fix for this issue.
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Old 03-18-2014, 10:44 PM   #8
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I wonder if you can get a Heli-Coil insert for something like that, to replace the threads.
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Old 03-19-2014, 06:23 AM   #9
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Quote:
Originally Posted by Old Bones View Post
I wonder if you can get a Heli-Coil insert for something like that, to replace the threads.
I don't think you can heli-coil pipe thread, since it is tapered.
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Old 03-19-2014, 07:14 AM   #10
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Quote:
Originally Posted by dwcjb View Post
Previous owner evidently removed and changed the anode rod. Must have stripped the threads as the leak. I removed and added Teflon tape, tightening as much as I dared. Have googled and a 1/2 NPT thread chaser/cleaning tool was recommended. It doesn't seem to exist, I have the NPT tap and have tried it but not enough meat. What recommendations/options does anyone have? My obvious choice is to replace the entire unit but it works perfectly. BTW to fix the leak I employed a short term fix was to use a twist in rubber plug, but certainly not at permanent solution. Thanks
No No No,the Suburban Drain hole is (3/4 NPT). Now throw that (Rubber Plug) away,you have just built a Water Heater (Pipe Bomb)! Youroo!!
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