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Old 01-01-2011, 09:15 AM   #1
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1973 27' Overlander
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dang it ... no furnace for me!

Dropped the Silver Olive off at JD Sanders AS dealer on my way home from camping in north FL. They confirmed my furnace is a recall unit with other damage making it unsafe to use. The cost of a new unit is rather high. I made the command decision to use that cost to install a new converter instead.

I'll do without the furnance while I'm still a FL resident! Last week an electric space heater and electric blanket kept me comfortable for the 3-nights of freezing. I was able to maintian the living-room/kitchen at 61F (24F outside). I opened all the undercounter cabinets and removed the supply hose.

Are there some simple steps to take that will allow me to safely make use of the black tank during a couple hours of freezing temps in the future?

Thanks - Laura
(who did get her hot water tank lit last week - yippie)
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Old 01-01-2011, 09:18 AM   #2
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since you now have hot water, how about putting some in the tanks?
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Old 01-01-2011, 09:30 AM   #3
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I would recommend RV anti freeze for the tanks. It's a little pricey but it's a lot cheaper than replacing frozen pipes and tanks and valves. Using hot water sounds OK, but eventually it will get as cold as the rest of the waste water.
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Old 01-01-2011, 09:31 AM   #4
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hi laura...

the trailer and contents would be at risk IF the daytime highs were in the 30s,

with night time temps lower.

in THAT climate you would have a lotta trouble keeping the inside comfy with a 5k btu space heater.
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the primary way of keeping the black tank from freezing,

during occasional dips below 32 is...

to keep it partially FULL (like 1/2 full).

depending on capacity this might be 10-15 gallons.

the volume will serve as a temperature buffer and works fine 'around' the frost zone.

rv antifreeze added to the tank is basically a waste of time and money...

adding salt or other things that lower the freezing point a bit don't help much either and may screw with the valves...
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the added benefits of keeping the tank 1/2 or more full are better breakdown of 'stuff' and easier dumping...

cheers
2air'
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Old 01-01-2011, 09:32 AM   #5
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Quote:
Originally Posted by richinny View Post
since you now have hot water, how about putting some in the tanks?

Ahhh, a simple solution! Wonder how long it would stay warm?

NOW I find a couple, very recent threads with similar questions. You'd think I didn't spend any time searching on this forum before posting... not a good start to the new year. I thought the RV antifreeze was used for long-term winterizing only. Doh.

Thanks for the additional tips 2air'... keeping it 1/2 full. Could be really open and invite a few friends over to help with that! Hahahahahaha

Laura
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Old 01-01-2011, 09:39 AM   #6
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rv antifreeze can be used 4 long or short term needs...

but when DILUTED it rapidly looses any protection from freezing.

and IF there is ice in the tank already (like near the valves)

the antifreeze does nothing to solve that problem.

again night time dips below 32 (even into the 20s) aren't a big issue,

if daytime highs are much above freezing


cheers
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