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Old 02-01-2011, 11:50 AM   #169
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I have my AS plugged in at home on a 30amp plug and we've got four days of freezing temps coming in (mid 20's and only at night). What should I do? Do I "winterize" the whole thing or are there limited things I need to do? I can run the furnace at about 50 for the indoor stuff, but what about the tanks. I'll drain the grey water and fresh water, but the black water (sewer) has about an 1/8 to 1/4 of a tank full (no solids). I don't have a local spot to go to to drain that tank. I've read all of the previous messages, but not sure I caught a situation like mine where I'm still powered up, but freeze is on the way. Appreciate any recommendations. Thanks!
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Old 02-01-2011, 02:36 PM   #170
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Relax. Keep the furnace on as you said. How cold is the forecast?
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Old 02-01-2011, 02:36 PM   #171
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in the day?
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Old 02-01-2011, 03:10 PM   #172
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28 tonight; Wed: 47/27/ Thurs 36/28; Fri 45/29; then back to 60s on Saturday!
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Old 02-01-2011, 03:56 PM   #173
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I don't know all the models as well as I should, I suppose. I assume you have an enclosed underbelly with heat ducts to the tank areas. With just barely going below freezing and well above during the days, I think you'll be fine. Leave the furnace on and make sure you have enough propane.

If you have an outside brass spigot, you probably have a shut off for that spigot inside the trailer. I'd close that valve and open the spigot.

Leave all the cabinets (with plumbing in them) ajar so the heat can flow into them. Some would suggest filling the black and gray tanks. They say that all that mass of water will freeze much more slowly than a small volume. Seems logical, but I have never tried that, so I have no personal experience.

Since you're hooked to shore power, turn on the water heater on electric (if it has water in it and not bypassed). I doubt that the tank will come close to freezing at those temps, but it would make me sleep better.
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Old 02-01-2011, 07:41 PM   #174
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A tank with a lot of water in will take longer to freeze than one with an inch or 1/2 inch at the bottom. Water can store a lot of heat or cold. The more water, the more BTU's in it. I'm sure this isn't the best scientific explanation. But if the temp goes much lower than predicted, a full tank, if it freezes and the furnace fails, means the water expands when frozen by 11%. But the furnace has to fail and the temp drop a lot.

Our thermostat goes down to 40˚ and that will be ok I think at 27˚ so long as it doesn't stay there all day and it isn't very windy. Cranking is up to 50˚ should make the tanks a bit warmer. I think a black water tank with urine and water will freeze at a lower temperature than water only. You can test this by putting out a bowl of black water contents (or provide the contents yourself) and seeing when it freezes.

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Old 02-01-2011, 11:56 PM   #175
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You'll be fine. You have shore power; make sure you have full propane tanks. The grey and black tanks are heated when you run the furnace. Just set the furnace at the lowest level (I think that it 40 with the duo-therm control), open some cabinets and walk away. I winterized mine today but we are set for several nights of 12-14 lows in an unpowered lot. I drained and blew out all lines with air, removed all shower heads and pull out faucets and hit all of the drains with RV anti freeze. This all took me 15 minutes to do.

Good luck. 27 isn't cold, except in Texas. Right now, it's -20 where I used to live.
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Old 02-02-2011, 08:02 AM   #176
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I sitting in Springfield, Illinois looking at the AS and wondering why I didn't hook on and head south? Snowdrift made it difficult to get out of the drive this morning and temps in the morning are of the negative type. I wish I'd hit the lottery and me and the pup would be in Mexico today. LOL
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Old 02-02-2011, 08:12 AM   #177
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Me too! 17 inches of snow last night....55 MPH winds...18 degres and dropping to near 0 today with wind chills -20 degrees! Only 6 1/2 weeks till my trip down south though!
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Old 02-02-2011, 08:37 AM   #178
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Good news! The groundhog didnt see his shadow this morning.
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Old 02-02-2011, 06:50 PM   #179
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just a thought

Fromo the sound of it,
1) pour RV antifreeze into the black water tank.
2) blow the lines with an air compressor (60 lbs.)
3) suck one bottle of RV antifreeze into the line so that it will settle in the low spots were water may be.
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Old 02-02-2011, 09:25 PM   #180
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More thoughts needed—

Also pour antifreeze in all the traps, suck antifreeze through each spigot, kitchen sprayer, toilet. Suck enough to get to the grey water tank so it lubricates the valve. Pour some into black tank through toilet for same reason and then leave some in toilet to lubricate that valve. Drain water heater. Don't forget outside shower or spigot.

Now I'm thoughtless.

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Old 02-02-2011, 09:36 PM   #181
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Our AS had a close call over Thanksgiving weekend here in Colorado; the water lines were working the night before but froze on our drive to Colo Springs. We setup at the campground, cranked the heater up to 60, opened all the cabinets AND took up the mattress to let heat get to the lines near the water tank under the bed. Then we went to a nice Thanksgiving dinner with family; came back after dark; everything worked.
All the tips here sound good - you might stand the mattress on end to get warm air to those lines.
Good luck.
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Old 02-06-2011, 04:13 PM   #182
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Thanks to all for your help. We made it through the freezing temps this week w/o any problems. It's 82 in my backyard now and getting ready to enjoy the Superbowl. Thanks again!
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