There is a lot of mis-information floating around when it comes to the safest RV antifreeze. Whatever you do, do not put toxic antifreeze in your rig’s water holding tanks and lines. No matter what anybody says about not putting much in, or flushing it out, its never a good idea.
You can’t risk contaminating your entire water supply with such a foolish mistake. Thats why we are going to make sure everybody in the RV life knows the difference.
The dangers of putting the wrong antifreeze in your tanks when you winterize are very serious. According to Poison Control, even a small amount of antifreeze getting swallowed can be fatal. The kidneys can be damaged and stop making urine. If the victim survives, there may be permanent damage to the kidneys and brain.
RV Safe Antifreeze
There are several ways to tell if an antifreeze is safe to make its way into your rigs water lines and holding tanks. The first thing you are going to look for is a label advising non-toxic. If you cannot find that label, look for a label advising the antifreeze is safe for potable (drinking) water systems.
If you cannot find a ‘Safe for drinking water” nor non-toxic label you should look for the FDA’s label for GRAS (Generally Recognized as Safe). This is the preferred method of non-toxic verification because the FDA has strict requirements to receive their approval.
The type of antifreeze that is not safe will say ethylene glycol. If you see this you need to STAY AWAY. This is the dangerous type of antifreeze for a drinking water system. Ethylene glycol is used in antifreeze coolant. That type of antifreeze is needed by your vehicle’s motors, and not your RV’s water system.
Drinking Water System Safe Antifreeze
There are two brands of antifreeze we have used in our rigs’ water systems. We used to use Camco’s -50 rated antifreeze. (Check price on Amazon) I ended up making the switch because there wasn’t a deal on bulk orders from Camco. When you have two rigs it takes a larger amount of antifreeze each time we winterize.
Buying in bulk just makes sense for us, but it may not for you so be sure to check the price on both brands.
Now we use PEAK Antifreeze for RV and Marine. (Check price on Amazon) We switched to PEAK because they have the non-toxic label, the FDA’s GRAS for all ingredients, and its good to a temperature of -50 degrees.
Antifreeze can be very dangerous to your pet, so sure you always keep it stored in a safe place. Its every bit as dangerous to them as it would be you or your kids. Much like really young kids, they may not know any better so its best to store antifreeze up high or in a locked cabinet.
If you enjoyed the information above please consider reading our RV water filter review. Keeping your water drinking system, including your fresh holding tank, is important for your safety. A water filter for your camper can help keep your tanks clean.