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Old 11-16-2015, 02:03 PM   #1
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WOW the crud that came out of HW tank

Winterized today and after emptying the Hot Water tank,(and bypassing it) decided to flush it with my thin spray hose attachment
Minerals and chunks just kept coming out,I mean BIG chunks like small rocks I assume fell off of the anode rod
I recommend flushing.
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Old 11-16-2015, 05:16 PM   #2
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I didn't have a way to flush mine at the camper lot so will have to do it in the spring. Judging from my massively corroded anode rod, I expect lots of junk to come out.
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Old 11-17-2015, 01:01 PM   #3
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Flushed for the first time this Fall and sounds like mine was similar to your discharge. Previous owner didn't use a lot (2010 - 10K miles) and never flushed the tank. That being said, the anode rode looked almost new. Will be an annual event for us now!
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Old 11-17-2015, 08:02 PM   #4
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My TT only saw half a season b/c it was new. Still when I pulled my anode rod to winterize it was nearly eaten through at the base (threads). Rest of the rod looked relatively good. Guess I'll be getting a new one in the spring.


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Old 11-17-2015, 09:26 PM   #5
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Pulled my anode rod to winterize today and got this black tube flowing out. Looks like a small amount of pipe dope on the broken part, hope it does not affect hot water operation next month.
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Old 11-18-2015, 12:16 PM   #6
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I've noticed my last 6 or so trips that my hot water pressure isn't great especially in the shower (not a full spray and a lot of dribble)
I got to wonder if all the debris I got out of the tank may have been hindering the outflow?
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Old 11-18-2015, 12:32 PM   #7
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Quote:
Originally Posted by UmptySquat View Post
My TT only saw half a season b/c it was new. Still when I pulled my anode rod to winterize it was nearly eaten through at the base (threads). Rest of the rod looked relatively good. Guess I'll be getting a new one in the spring.


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If it's only worn at the base, then it's still got a lot of life left.

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Old 11-18-2015, 01:36 PM   #8
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If we aren't planning to use the MH for a while I always drain and flush the HW tank. It also saves on the anode rod. I have 3 years on the Suburban anode rod and it is at about the 50% level.
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Old 11-18-2015, 02:03 PM   #9
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I used a threaded/slip fit connector and a 6" pc of PVC to make an adapter that screws into the WH (once Anode is removed) You can slide a clean out wand inside it and flush the WH. The adapter keeps the crud that flushes out off the side of the RV.
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Old 11-18-2015, 02:28 PM   #10
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It's likely that the "crud" that flushes out of the water heater is minerals from hard water rather than pieces of the anode rod. The rod probably doesn't erode in "chucks". They can look terrible, but still function just fine.


Put un-softened tap water in a dark-colored pan or kettle, heat it until much of the water has evaporated, then look at the walls of the kettle; they'll be coated with gray/white minerals (largely calcium and magnesium), the same stuff that comes out of the water heater. Don't panic; we all need those minerals for good health.
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