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| liamahal on flickr.com |
With fall under way, one RVer asks: How can I keep my tanks and water lines from freezing up in cold weather? It's a good question, and one we learned about early in our RVing days when we woke up one frosty morning to find our water line looked like an icicle.
When it comes to freezing up your RV, the first rule is: Don't let it happen. Freezing water in a line is expanding water, and it will likely cause damage. Let's look outside first. When nighttime lows drop below the freeze point, most RVers abandon any idea of hooking up a hose to their "city water" inlet. Fill the rig's fresh water holding tank and let your RV's water pump keep water at the ready. In case of a freeze in your RV be sure to let your RV's water pump keep water at the ready. In case of a freeze in your RV be sure to consider RV insurance for proper coverage.
If you'll be in camp for a while and have electrical hookups, some RVers have kept their water hose ice free by carefully applying "heat tape," to the hose. Heat tape is typically sold in hardware stores to be wrapped around pipes at home to keep them from freezing. When using it on a hose, the trick that's said to work is not to wrap the hose with the heat tape, but rather, run the heat tape in parallel with the hose and tape it on. We've never tried it, but some say it works. And it may, provided it doesn't get too, too cold.
Next, there's the matter of the sewer hose. Again, if you're in a park with sewer hookups, we typically recommend leaving the black water valve closed and allowing gray water to flow freely into the sewer. Not good advice in cold weather. Keep both valves closed, and dump only when your tanks fill up. If your in serious cold country and your tank valves are not in a heated basement compartment, you may find them "frozen shut." We've dealt with this by carefully pouring hot water over the valves to unstick them.
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What about holding tanks? Again, if your rig is "winter ready," the tanks are probably safely tucked away inside a heated compartment. Only our truck camper has ever had this option, and we've always had to deal with exposed tanks. In our experience if the weather warms up above freezing by day, we've always been good. But if you're dealing with protracted below freezing days and nights, you'll need to do more. If you're stuck in a cold weather area, skirting around the rig may help keep some of the cold out. Hay bales are easy, but mold and attract vermin. Using "real" skirting may be your only option.
Even with skirting if there's a danger of a holding tank freeze up, your last viable option is a holding tank heater. Think of it as an electric blanket for your tank. It sticks on the bottom of the tank and uses electricity to warm the tanks above the freeze point. One manufacturer has a "dual power" system that uses shore power when in camp, and 12-volt power when the rig is under way. At about $100 per blanket (meaning two for the typical RV), it's not an inexpensive solution.
If cold weather is severe, be concerned about keeping your inside pipes warm, too. Typically basement storage compartments are heated with your rig's LP furnace. If you try and conserve LP by turning it off and heating with a space heater, you've blown keeping the storage compartments warm. We've found in really cold weather that it's best to open the cabinet doors to areas where water pipes run to ensure warm air gets to the precious plumbing.
As a general rule, it's never a great idea to keep your RV in the open winter air for the season. Look into RV self storage units in your area.
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