rrobb
Newbie RV’er
Posts: 23
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Post by rrobb on Feb 26, 2019 21:43:56 GMT -5
My black tank is 1/3 full. We're going to get into the twenties a couple of nights this week and I may not be able to take my rig to a dumping station. Has anyone put enough RV antifreeze in their tank to get a 20-30% mixture when they can't empty the tank to protect the tanks?
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Post by nvguy on Feb 26, 2019 22:09:50 GMT -5
I wouldn't be all that worried, as it would take an extended cold spell where temps stay below freezing day and night to get that large amount of water to freeze solid. With that said I would be somewhat concerned about the small amount of liquid in the pipe leading to the dump valves, now if your coach has an enclosed underbelly, I wouldn't be as concerned. But since I tend toward caution, it wouldn't hurt to dump 4-5 gallons of RV antifreeze in the black tank.
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rrobb
Newbie RV’er
Posts: 23
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Post by rrobb on Feb 27, 2019 1:21:38 GMT -5
I'll be blowing all the water out of the fresh lines, Sani-flush line, water heater and the water pump. The day time temps will be in the forties. I'll put antifreeze in the black and grey tanks to get them to 20-30% antifreeze. Draining the fresh tank. Seems reasonable to me, but glad to hear someone who knows a lot more than me agrees.
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Post by laknox on Feb 27, 2019 10:46:25 GMT -5
If you've got 110v power, put a 100w bulb underneath the valves (if exposed) and make a cardboard "skirt around it. Amazing how much heat they put out! I know a lot of people that have use a couple of 100w bulbs underneath their rig, with full skirting, to help keep things from freezing.
Lyle
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Post by Chuck on Feb 27, 2019 13:44:06 GMT -5
I'm with nvguy, I won't worry to much unless your temps drop onto the low 20es all night an day for a week or more.. But a gallon of antifreeze or so is good insurance an makes you feel better I'd do it  Safe Travels Chuck |
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Post by Edd505 on Feb 27, 2019 20:50:44 GMT -5
enclosed belly may have heat vented down there. If it does turn on the heat at a low setting 55-60. Inside stays warm and so does the belly.
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