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Old 01-10-2010, 09:17 AM   #15
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Quote:
Originally Posted by Silverhobby View Post
Non toxic antifreeze is detrimental to the anode rod on the water heater.
This is correct if you have Suburban water heater. Atwood heaters which are on many of the newer Airstreams have no anode. Here's a quote:

Note - Atwood Water Heater Owners: There is a Camco Anode Rod for Atwood Water Heaters available on Amazon.com as well as from several other vendors. This item should not be used in newer Atwood water heaters. After speaking with the Technical Assistance department at Atwood Moblie Products, I was told that: "anode rods should not be used in their newer tanks and their usage will void their (Atwood's) 2 year warranty". The reason for this is because Atwood tank liners have a protective cladding which in itself protects the tank from the accumulation of corrosive materials. The use of an anode rod inside these Atwood water heaters changes the configuration of the tank and will cause additional corrosive materials to accumulate and build up on the bottom of the tank making it difficult to clean and will create more corrosive material inside the tank. Furthermore, if an anode rod is used, it's deterioration inside the tank may well cause this protective cladding to be compromised thus allowing the accumulation of hydrogen sulfide inside the tank producing a rotten egg odor.
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Old 01-10-2010, 09:26 AM   #16
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Thanks, Richard---ours looks like that with a loop in the bottom piping which includes a check valve, as best I can tell. I'm learning a lot from this--thanks for the excellent picture too!
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Old 01-10-2010, 09:34 AM   #17
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Originally Posted by NCMtnStream View Post
Brand spanking new 20' Flying Cloud with built in tank heaters AND the unit has been a constant 65-75 degrees. Galley doors open and drawers pulled to allow warm air circulation...guess what....frozen fresh water tank here as well.
I believe there are tank heaters only on the black and grey tanks- not on the fresh water.
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Old 01-10-2010, 10:07 AM   #18
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Originally Posted by SSChanger View Post
Guess the good news is the PEX tubing is not likely to rupture, although I'm not so sure about the fresh water tank.

Sorry to hear about the frozen drain valves and the lack of facilities! You are in one of the most beautiful parts of the nation--We graduated from Mars Hill College just up the road from Waynesville. Still remember it was the coldest we've been in our lives, though, in the mountains of North Carolina.

Agree--Airstreams are not built for Alaska!
I was born here in Maggie Valley, though my posting says Waynesville..still have not figured out why. Maybe zip codes? You are right about this being one of the most beautiful parts of the country. I have been around the globe a few times (USAF) and feel this is the best place in the world.
I thawed the dump valves and am using them in the open position since they froze again. Better open than closed.
I am in a bit of a tight spot here since I can't drain the lines to winterize but it looks like we are supposed to hit 40 degrees tomorrow so this will help alleviate some of the problem. Any damage will appear after the thaw I guess.
I have contacted Airstream about the tank heater not doing its JOB and will pass any information I get from them along to everyone here.
My dealer's rv tech told me also that antifreeze in the water heater would cause premature corrosion of the components there and to always use the bypass feature.
Hope this helps...
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Old 01-10-2010, 10:54 AM   #19
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in my service station days we would push cars with frozen gas lines into the bays at night to thaw. if you can find a place to thaw toastie overnight or overday, it might save you a lot of fussing and cussing too! just cap the black tank before you thaw ;-)
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Old 01-10-2010, 11:08 AM   #20
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Tank Heaters

Following this tread has raised a question for me.
What models have tank heaters?
I am 99.9% sure my 31 classic does not. The tanks are enclosed by metal boxes on the bottom and heated by a duct hose from the propane furnace. In my case, if I heat the trailer with anything other than the furnace, the tanks will definitely be subject to freezing.
regards,
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Old 01-10-2010, 12:52 PM   #21
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Originally Posted by w7ts View Post
Following this tread has raised a question for me.
What models have tank heaters?
I am 99.9% sure my 31 classic does not. The tanks are enclosed by metal boxes on the bottom and heated by a duct hose from the propane furnace. In my case, if I heat the trailer with anything other than the furnace, the tanks will definitely be subject to freezing.
regards,
Ken
Tank Heaters were not an option to my knowledge on my 06 31 Classic.
I would have purchased them. The amount of air from the forced air heater is minimal. I put a small scoop in the Tee and is significantly increased the air flow.
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Old 01-10-2010, 02:11 PM   #22
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RV "pink" anti-freeze is designed to be used undiluted and will not provide the freeze protection needed if diluted even a small amount. You buy it by the gallon so if you want to protect your water heater it would have to be filled with 6 gallons of anti-freeze which is pretty expensive for something that has to be discarded. If you are not using the water heater it should be drained. A water heater bypass unit can be installed that will allow full strength anti-freeze to circulate in the rest of the water system.

Right now we are located in Boerne just a little west of San Antonio, TX. It was 13 degrees yesterday morning and the park swimming pool has ice thick enough to stand on. So far we have not had a problem in the A/S. We have our water tank full because the parks water system has been freezing occasionally, keep cabinet doors cracked where plumbing is located and have the thermostat set at 68 degrees. Outside we have put a foam insulation sleeve on a short piece of water hose I made up and we keep a trickle of water running in the sink during freezing weather. Now that I made that statement I'll probably wake up to a gusher somewhere tonight! No frozen dump valves. We keep our grey water open and running and dump black as needed. A hair dryer will generally free up a dump valve if it does freeze. We came south for the winter...when is it going to get warm??
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Old 01-10-2010, 03:10 PM   #23
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Right now we are located in Boerne just a little west of San Antonio, TX. It was 13 degrees yesterday morning and the park swimming pool has ice thick enough to stand on. So far we have not had a problem in the A/S. We have our water tank full because the parks water system has been freezing occasionally, keep cabinet doors cracked where plumbing is located and have the thermostat set at 68 degrees. Outside we have put a foam insulation sleeve on a short piece of water hose I made up and we keep a trickle of water running in the sink during freezing weather. Now that I made that statement I'll probably wake up to a gusher somewhere tonight! No frozen dump valves. We keep our grey water open and running and dump black as needed. A hair dryer will generally free up a dump valve if it does freeze. We came south for the winter...when is it going to get warm??

My order of global warming hasn't arrived at Costco...going to have to ask Al Gore about that! Thanks for the tips on Airstreaming in continuously cold weather--I'll use that!
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Old 01-10-2010, 03:34 PM   #24
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Your best bet is to always drain the fresh water tank then use a bypass hose off the pump to suck the rv antifreeze out of each gallon you use and make sure undiluted antifreeze goes down each drain especially the shower drain and toiddy sprayer hose before dumping remainder down toilet and the grey tank. This will prevent damage to dump valves. The hot watre heater has a plastic plug to unscrew to allow it to be emptied so no antifreeze needed, bypass for heater advised to run antifreeze along hot water lines to sinks shower etc...
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Old 01-10-2010, 05:17 PM   #25
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Please explain the "scoop"...

Quote:
Originally Posted by thecatsandi View Post
Tank Heaters were not an option to my knowledge on my 06 31 Classic.
I would have purchased them. The amount of air from the forced air heater is minimal. I put a small scoop in the Tee and is significantly increased the air flow.
Could you explain what you mean by a scoop??? I have a very cold front bedroom but a hot galley...Could I "scoop" both the tanks and front bedroom?

Thanks in advance.
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Old 01-10-2010, 06:59 PM   #26
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Scoop Away

For those interested. After searching thousands of pictures... (really) Here are the pictures of the scoop
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Old 01-11-2010, 05:40 AM   #27
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Quote:
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I believe there are tank heaters only on the black and grey tanks- not on the fresh water.
Two switches located above the bathroom sink that glow red when turned on. One switch labeled fresh and the other gra/blk at the top of the panel and tank heaters at the bottom of the switches.
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Old 01-11-2010, 07:00 PM   #28
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Thanks to everyone for you ideas! I towed Twinkle back to the storage yard today--the temperature went to 45 degrees. Looks like everything's gonna be alright, as the song goes.

But you all taught me some interesting things about our AS, and we appreciate you!
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