How To Keep Your RV Plumbing From Freezing When Winter Camping

Keep your plumbing from freezing when winter camping. Photo via iRV2 Forums

How To Keep Your RV Plumbing From Freezing When Winter Camping

In previous posts, I have touted the joys of winter camping and all the fun family winter activities that can be enjoyed in an RV. Now, if you choose to take up winter camping and your travels will take you to areas with sub-freezing weather, there are several precautions you should be aware of.

The number one concern is keeping your RV plumbing from freezing. Not just the freshwater system, but the waste holding tanks too.

If you are new to sub-freezing camping, I suggest your first outing be at a campground that has electrical hookups. Having access to shore power provides plenty of energy to keep everything warm, the furnace running, and removes the concern for keeping the batteries charged, which is a whole other entry.

The first step is to keep your RV from freezing on the way to your winter wonderland. If you are comfortable running with your LP turned on, the easiest solution is to leave your furnace on low.

If you are not comfortable running with your LP turned on, you will probably want to leave your RV winterized until you reach camp and take on water upon reaching the campground.

Iced-over termination cap and dump valves.

How to keep RV plumbing from freezing

1. Unless you have a heated freshwater hose, fill your freshwater tank upon arriving, then drain and store the hose. Nothing takes the fun out of winter camping more than trying to coil a 25-foot water hose that is frozen stiff. (Note: If your freshwater tank is not heated and you are concerned it might freeze over the course of your campout, leave enough room for expansion in the event the water freezes as to not split your water tank open).
2. If you have an exterior shower, remove the showerhead from the hose and make sure it is drained. While the hose and nylon faucet can typically withstand freezing, the shower head is the most susceptible to damage from freezing. If the back of your exterior shower opens up into an interior RV cabinet, like under the bathroom sink, leave the cabinet door open to protect the lines to the faucet and provide some heat to the back of the faucet itself.
3. If you have electric hookups, consider taking an electric heater with you to save propane and furnace time. For safety, buy a portable electric heater or an oil-filled electric heater (that shuts off if it tips over).  I carry an oil-filled heater as there is no fan to make noise to keep me awake at night.
4. Know where your freshwater pipes are located. If they are located in the back of your cabinets, leave the cabinet doors cracked so heat can circulate to them. If they are located in the floor along the heating ducts, make sure your furnace cycles occasionally to prevent them from freezing.
5. Keep your holding tanks and valves from freezing by adding RV antifreeze to the tanks. The amount you will need to add will be proportional to the contents in each tank. Also, if your travels to and from the campground will be through winter conditions, be aware that ice can build up on your dump valves and termination cap, which makes for an interesting proposition when you go to dump your tanks.

Subfreezing camping and the precautions and trials that come with it is just another adventure in RVing. Get out there and enjoy! For more tips, check out our post on How To Avoid Winter Camping Problems In Your RV.

Dave Helgeson

Follow Dave’s RV adventures as he travels the West in search of forgotten and unique places. For Dave, home is where you park it, the more remote the better!