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Old 09-10-2016, 05:05 PM   #11
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I have noticed the anode rod fitting (or maybe the "bung hole"?) on my water heater has always been really rusty, since day one (8 years) but the tank itself has always been fine. Perhaps that's where your rust is coming from? When I clean/check my anode rod I scrub the fitting with a wire brush.

And to much Teflon tape may be an issue. Just enough so it doesn't leak and I usually leave the first few threads uncovered for a good "ground"
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Old 09-10-2016, 10:49 PM   #12
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Well i got a suburban brand anode rod, so well see if that helps, cause i did notice rust on the camco threads,

But does anyone know why there is this red crap in the hoses?
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Old 09-11-2016, 08:57 PM   #13
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But does anyone know why there is this red crap in the hoses?
My best guess is left over antifreeze. Just about all the plumbing in an RV is plastic. The water heater tank is either aluminum or stainless steel. I can't think of any source of rust/corrosion that would leave a red stain inside the RV.

Aluminum will corrode/oxidize but that makes a grey color, not red.
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Old 09-13-2016, 08:30 AM   #14
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Rust in lines

In manufacturing the tank, maybe the glass lining did not coat the entire
inside of the tank. This could cause the tank to show rust from the uncoated surface.
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Old 09-13-2016, 08:56 AM   #15
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My best guess is left over antifreeze. Just about all the plumbing in an RV is plastic. The water heater tank is either aluminum or stainless steel. I can't think of any source of rust/corrosion that would leave a red stain inside the RV.

Aluminum will corrode/oxidize but that makes a grey color, not red.
Would forest river use anti freeze from warehouse ? Ive never used it
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Old 09-13-2016, 09:03 AM   #16
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It is possible that the campground water had a very high content of dissolved iron and when heated, it will precipitate out and cause the rust coloring you are seeing.
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Old 09-13-2016, 09:04 AM   #17
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In manufacturing the tank, maybe the glass lining did not coat the entire
inside of the tank. This could cause the tank to show rust from the uncoated surface.
Its really weird, from the fresh tank to the pump there is this deep red crud, it looks like a raspberry got into the tank, the stuff dries like a deep blood color...

I was able to get a scope maybe half way up the hose (from tank to pump) and its half way coated, there was a slight kink in the hose and i couldnt get the scope past it, but the hose looked clear at that point.

Again, im not sure that red crap got passed the pump because the sediment trap is clean on the pump itself...

As for the water heater itself, Im going to check it and the suburban anode rod later today to see if it helped with the rust. We used the trailer this weekend, so its only been sitting since sunday night. During the weekend, cold and hot water came clear from sinks and showers
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Old 09-13-2016, 09:10 AM   #18
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It is possible that the campground water had a very high content of dissolved iron and when heated, it will precipitate out and cause the rust coloring you are seeing.
I have no idea, but we would figure it would be happening to more people than me, usually the places i go too get super busy too.
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Old 09-13-2016, 09:12 AM   #19
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My tank is aluminum, yours could be too. My guess is the water supply has a high iron content. Are you using a good filter in your water line before it goes to the water heater? Anode rods are pretty much the same. Your old one was working fine from the way it looked.
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Old 09-13-2016, 09:14 AM   #20
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It is possible that the campground water had a very high content of dissolved iron and when heated, it will precipitate out and cause the rust coloring you are seeing.
Bingo!
Very common problem here in Western PA.
Iron filters are a must on most well supply systems.
Turns EVERYTHING red without.
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