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vlopddap's avatar
vlopddap
Explorer
Sep 17, 2014

Water header 3/4" anode with drain valve (Suburban) ?

I'll try to make things clear... yesterday I removed my drain plug on my Suburban 6 gallons water heater (2011 model w/ pilot, no DSI) and O.M.G.... so much crap, rust and more have poured out of the tank!! I don't use my camper that much during the season, in fact only during weekends, so between each trips the water remain stagnant inside the tank many days... So I'll take time to drain my water heater between each use now.

I want to replace the drain plug which is a 1 inch head with 3/4 inch thread for a tool-less drain valve... moreover my factory anode is completely worn (about 1/8 inch thin now!) so I need to replace it too. I want to keep the anode because it extend water heater life I think, except if people have different experiences...

Camco offer an anode combined with a tool-less drain plug, but only 1/2" size thread (for Atwood heaters).

Do you know if another company offer the same kind of device but with a 3/4" size for the Suburban's??

Or maybe I can fit a brass reducer maybe from 3/4 to 1/2 ??

Anyone have a DIY experience to share?

Thank you very much!

14 Replies

  • If you drain the water heater it will have a little bit left in the bottom of the tank. Because this water does not make contact with the anode, the anode cannot protect the tank. It is better to either leave the tank full with a good anode or completely drain and blow out the tank - which isn't easy.
    I would leave it full of water.
  • tvman44 wrote:
    I don't think brass is compatible with aluminum.


    Press/Temp Relief Valves are brass.

    Atwood is aluminum alloy tank
    Suburban is steel glass-lined tank
  • Anode rod and drain plug is a one piece assembly.
    Drain plug has a steel rod attached and then the anode material is formed around that steel rod.

    Remove drain/anode rod between trips to drain/flush water heater and to clean off anode rod.

    Forget about easy drain via a pet-cock design etc.

    And that Atwood anode rod........aftermarket rip off cause Atwood WHs don't need an anode rod and are not recommended by Atwood.
    That's whay they are not a problem.......anode rod not needed/necessary so petcock drain works OK. Personally I prefer draining and flushing as a petcock type drain is too small to get all the crud out.

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