maryfilen
Will be camping in the mountains so the temps will likely drop below freezing at night.  Can we still fill our tank with water and use sink, shower and toilet?  Or should we dry camp?  Concerned about freezing water and damage it might do. 
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mkevenson
Maryfilen, Keeping your trailer inside temp above freezing will help keep internal plumbing from freezing. These trailers are not designed as 4 season rigs. You could help by wrapping all exposed pipes and water tanks with insolation, but will this be enough? We don't camp in freezing weather. There are trailers designed for 4 season camping.
Mark
Please buy Made in USA
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sunvalleyjoe
we have camped in the mts with freezing temp . Biggest thing was heater was on almost all night . Itsnowned and temps got to 28 degs. It was not a hard freeze warmed up to 40's during the day. We used quite a bit of propane at night and thank God we had 2 batteries the heater we will eat them up. We did have good sleeping bags but after 2 nights went to lower elevation. We camped by Yosmite at over 7500 ft elev. . Like Mark said these units are not made for 4 season camping.Only good thing was we had almost the whole place to ourselves.W did use water in the tanks but used cg toilets and showers. have fun GBA!!SVJ
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maryfilen
So you had water in your tank and you stood in the sinks. So water would have gone into the gray water tank. And you did not have any freezing of any pipes or tanks?
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mkevenson
Maryfilen, forgot to mention, but Joe did. Being in sub 32 degree temps with your trailer will only be detrimental with a HARD freeze. So the time the outside temp is below freezing is the key factor as far as your plumbing is concerned. Take the same precautions that you would at home. You can keep a faucet running slightly but again, I would suggest either using a 4 season trailer of limit your time in freezing temps. Run your trailer heater during all times when outside temps are freezing. You COULD build a ring of camp fires around your trailer and that may help, oh , hire someone to get the fires going all night😯
Mark
Please buy Made in USA
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sunvalleyjoe
The 150's and 155 do not have gray water tanks . So we let the water draing into 5 gal can and dump it in fire pit when full. My wife also made heavy curtains and mini blinds help keep the heat in. Our bigger tt has dual pane window it is way better in cold temps. Artic Fox makes a 4 season tt but they are not cheap. GBA!!SVJ
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sunvalleyjoe
forgot if you do want to use gray water tank. Buy a gal of the pink rv anti freeze and use it to stop water from freezing you can also use in black water tank. Never had to use it cept for winterizing the Retro. GBA!!SVJ
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maryfilen
Using the RV antifreeze in the tank sounds like a great idea. it would allow us to use our new 193 in mountain areas where the nights get cold but the days are warmer.
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Ralph L Staub
The first worry of cold weather camping is the exposed supply lines under the trailer. They are small, and can freeze very fast in an overnight cold snap. Pipe insulation can help, electric pipe heating tape is even better.

the holding tanks are a great deal more forgiving, due to their size. It typically has to be below freezing for more than 12 hrs a day for a tank to freeze up, depending on the level. You can buy adhesive tank heating blankets that keep it warm enough, but if you’re boondocking, there’s nowhere to plug it in.

Retros have no insulation in the floor. Where plumbing comes through the floor into a cabinet, keep that cabinet door open to allow your heater to keep it warm. Keep your water heater on too. Oh and you'll need a really warm and fuzzy pair of slippers. Its like walking on a frozen lake when you get out of bed...
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maryfilen
Thank you so much!
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cadal99
We had the joy of camping at 7000 on the first day of summer this year and got snow overnight.  Granted, only a couple of nights and probably was just barely below freezing in the evenings, but everything did great with running the furnace in our 176S with full freshwater tank.  Wouldn't want to do it for prolonged time/all-day freezing temps, but one data point of good experience anyway 🙂  Stayed nice and toasty in the camper.  Did have electric plugin.  Not sure how much propane those couple of days took... but after 3 trips all running the furnace early in the season, had about 1/4 tank left in propane.

Have fun - stay warm 🙂
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