Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > Travel Trailer Discussion
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 10-19-2013, 06:19 AM   #1
Junior Member
Join Date: Oct 2013
Posts: 1
Hot water tank corroded plug

I am trying to winterize my travel trailer and the hotwater tank plug is corroded and I can't get it unscrewed. Any ideas?

jamesnancy is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 10-19-2013, 06:23 AM   #2
Join Date: Sep 2013
Posts: 99
Longer wrench....a Johnson bar and socket is your best bet....The do tend to be tight due to heating and corrosion. When reinstalling, use some teflon tape

poncho62 is offline   Reply With Quote
Old 10-19-2013, 07:55 AM   #3
Senior Member
J Birder's Avatar
Join Date: Feb 2012
Location: Lake County, IL
Posts: 1,102
First, try a longer wrench. If that doesn't do it, try giving the wrench a few sharp hits with a hammer while applying force on it. If it still won't budge, rent an impact wrench.

Retired electronics engineer. Avid paddler & birder.
2011 Silverado 2500HD, diesel, 4x4,crew cab, 8' bed
Palomino Puma 253FBS (27' 5er) & '94 19' Class B
J Birder is offline   Reply With Quote
Old 10-19-2013, 09:12 AM   #4
Senior Member
Yukon Jack's Avatar
Monaco Owners Club
Join Date: Oct 2010
Location: Colleyville, TX
Posts: 165
It would have been helpful to know what brand of water heater you have, Surburban, Atwood, etc.
If you have a Surburban, the drain plug is normally the anode rod that is removed to drain the water.
If you have an Atwood which normally is manufactured with an aluminum tank and should have a nylon drain plug and NEVER use a steel or galvanized plug to replace the nylon plug. This is because with the dissimilar metals, (aluminum to steel) you will see an electrolysis chemical reaction that, over time, will virtually seize these two components together, and make it extremely hard to break the plug loose from the tank.
One trick might be, if there is room, to apply a little heat to the tank, around the plug, and put ice directly on the plug and then use a shock load or impact to try to break the plug loose from the tank.

When you get the plug out, I would recommend using a pipe tap to chase the threads in the tank and use a new plug, with Teflon tape to secure it, and only tighten it enough to assure it won't leak, so it is easier to get out the next time you want to drain the tank.

Hope this helps and happy RV'g

Yukon Jack is offline   Reply With Quote
Old 10-23-2013, 06:33 PM   #5
Senior Member
Join Date: Sep 2012
Posts: 4,232
If you want to gamble, go ahead and get a bigger wrench and an impact.
Penetrating oil, and light but sharp taps on your ratchet right now.
And Jack is right. Suburban = steel threaded anode rod. Atwood = plastic plug.
jesilvas is offline   Reply With Quote
Old 10-23-2013, 07:43 PM   #6
Senior Member
TDI-Minnie's Avatar
Join Date: Sep 2013
Posts: 1,581
The above options are ok, but first, run the heater (with water in it). Just like hitting a stuck bolt with a torch, the heat (expansion) of the tank may be enough to unseat the bolt.
Just don't scald yourself. If it comes loose, turn off the heat and let it cool before pulling the plug.

2013 Winnebago 2301BH-Red
2012 Ram 2500 Megacab HO CTD
TDI-Minnie is offline   Reply With Quote

tank, water

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:11 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.