Introduction
The crisp air of autumn signals adventure’s end for many recreational vehicle (RV) enthusiasts. As the leaves turn and temperatures drop, a crucial task looms: winterizing your beloved RV. But before you start pouring in solutions, there’s a vital question to address: Are you using food safe RV antifreeze? Improper winterizing can lead to burst pipes, damaged plumbing, and costly repairs. Perhaps even worse, using the wrong kind of antifreeze could contaminate your water system, posing a health risk to you and your family. Imagine setting off on your first spring camping trip only to discover your water tastes like chemicals – a scenario easily avoided with proper knowledge and the right product.
Understanding RV Antifreeze
What is RV Antifreeze?
RV antifreeze is a specially formulated liquid designed to protect your RV’s plumbing system from freezing temperatures. When water freezes, it expands, placing immense pressure on pipes, pumps, faucets, and even your water heater. This expansion can lead to cracks, leaks, and ultimately, system failure. RV antifreeze, unlike regular automotive antifreeze, is designed to be less viscous and provide freeze protection without damaging the sensitive materials used in RV plumbing.
Why You Need Antifreeze for Winterizing Your RV
Why should you add antifreeze for winterizing your RV? It is not merely a suggestion; it’s a preventative measure. Imagine the alternative: a cracked water pump, needing replacement due to freezing water. Repair costs for RV plumbing can quickly escalate, far exceeding the comparatively small expense of antifreeze. More significantly, neglecting to winterize properly can lead to hidden leaks that cause water damage and mold growth, turning your dream RV into a maintenance nightmare.
Key Differences: Food Safe Versus Non-Food Safe Antifreeze
The fundamental difference lies in the chemical composition. Food safe RV antifreeze is primarily made with propylene glycol. Propylene glycol boasts relatively low toxicity. It’s considered generally safe for incidental contact with drinking water after thorough flushing. While not meant for consumption, it poses a lower risk compared to its alternative.
On the other hand, non-food safe antifreeze usually contains ethylene glycol. This chemical is highly toxic to humans and animals. Ingestion of even small amounts can cause severe health problems, including kidney damage and even death. Beyond the direct health risks, ethylene glycol can also contaminate the environment, posing a threat to wildlife and water sources.
Identifying which type of antifreeze you have can be tricky. Always read the label carefully. The product should explicitly state that it contains propylene glycol. Moreover, look for terms like “RV antifreeze,” “potable water system antifreeze,” or “safe for drinking water systems.” A helpful visual cue is the color. Food safe antifreeze is typically pink or purple. However, relying solely on color can be misleading, so always confirm with the product label.
Is RV Antifreeze Safe To Drink?
Incidental ingestion: What to do?
The short answer is a resounding *no*. While propylene glycol-based antifreeze is considered “food safe” it’s only in the context of incidental contact within your potable water system. It’s not meant for consumption. Ingesting RV antifreeze, even the food safe variety, can still cause nausea, vomiting, and diarrhea. The severity of symptoms depends on the amount ingested and the individual’s overall health.
What if accidental ingestion occurs? This can happen, especially with children or pets. If you suspect someone has ingested RV antifreeze, immediately seek medical attention. Call your local poison control center or visit the nearest emergency room. Do not attempt to induce vomiting unless instructed by a medical professional. Explain the situation clearly, specifying that the ingested substance was RV antifreeze and, if possible, whether it was propylene glycol-based or ethylene glycol-based.
For children, the risk is greater. Their smaller bodies are more susceptible to the toxic effects of chemicals. Always store antifreeze out of reach of children and pets. Clear labeling and secure storage are essential for preventing accidental ingestion.
Choosing the Right Food Safe RV Antifreeze
Key Considerations
Selecting the right food safe RV antifreeze involves carefully considering several factors to ensure optimal protection and safety.
Propylene Glycol Concentration
Start with Propylene Glycol Concentration. Antifreeze is available in various burst protection ratings, typically indicated by the lowest temperature it can withstand before freezing. Common options include minus fifty degrees Fahrenheit and minus one hundred degrees Fahrenheit. Choose a concentration that aligns with the typical winter temperatures in your region. If you live in an area with mild winters, a minus fifty degrees Fahrenheit rating might suffice. However, if you experience harsh winters with prolonged freezing temperatures, a minus one hundred degrees Fahrenheit rating offers a greater safety margin.
Certification or Standards
Seek Certification or Standards. Look for products that have been certified by reputable organizations, such as NSF International. NSF certification signifies that the antifreeze has been tested and meets stringent standards for food safety and water quality. This certification provides an extra layer of assurance that the product is safe for use in your RV’s potable water system.
Brand Reputation
Consider Brand Reputation. Research different brands of RV antifreeze and read customer reviews. Opt for brands that have a solid reputation for producing high-quality and reliable products. Look for reviews that specifically mention the product’s effectiveness in preventing freezing and its lack of odor or taste after flushing. A well-established brand is more likely to have undergone rigorous testing and quality control measures.
For some product examples, consider searching for “Camco RV Winter Antifreeze,” “Star brite Non-Toxic RV Antifreeze,” or “Splash RV Antifreeze.” These brands are generally well-regarded, but always verify the ingredients and certifications before purchasing.
Winterizing Your RV with Food Safe Antifreeze: Step-by-Step Guide
Preparation
Proper winterizing requires a systematic approach. Before you begin, gather all the necessary tools and supplies. You’ll need RV antifreeze, a water pump converter kit (if using the water pump method), wrenches, screwdrivers, and a bucket. Start by draining the entire water system. This includes draining the fresh water tank, the water heater (after bypassing it), and all the water lines. Open all faucets and low-point drains to allow the water to drain completely. Use compressed air to blow out any remaining water in the lines for added protection.
The Antifreeze Procedure
Next, bypass the water heater. This prevents antifreeze from entering the water heater tank, which is not necessary and can be difficult to flush out later. Most RVs have a bypass valve system near the water heater. Consult your RV’s manual for specific instructions on how to bypass the water heater.
Now, introduce the antifreeze into the water system. You can use either the water pump method or the city water inlet method. For the water pump method, install a water pump converter kit, which allows you to draw antifreeze directly from a jug. Turn on the water pump and run each faucet (hot and cold) until you see pink antifreeze flowing out. Flush the toilet with antifreeze. Pour antifreeze into P-traps (sinks, shower) to prevent them from freezing.
For the city water inlet method, connect a hose from the city water inlet to a jug of antifreeze. Use the RV’s water pump to draw the antifreeze into the system, following the same procedure as above.
Post-Winterizing Checklist
After winterizing, make a thorough check. Ensure all faucets and fixtures are protected with antifreeze. Disconnect and drain all water hoses. Inspect the entire plumbing system for leaks. Address any leaks immediately to prevent further damage.
Dewinterizing Your RV in the Spring
Flushing the System
Dewinterizing involves removing the antifreeze and sanitizing the water system to ensure safe drinking water. Thoroughly flushing the system is paramount. Connect your RV to a fresh water source and open all faucets (hot and cold). Run the water until it flows clear, without any trace of pink antifreeze. This process may take a considerable amount of time, so be patient and allow the water to run for at least fifteen to twenty minutes per faucet.
Sanitizing the Water System
Once the antifreeze has been flushed out, sanitize the water system. Prepare a bleach solution by mixing one-quarter cup of household bleach with fifteen gallons of fresh water. Pour this solution into your fresh water tank. Turn on the water pump and run the bleach solution through all faucets and fixtures until you smell the bleach. Let the solution sit in the system for at least four hours, or preferably overnight. After the soaking period, drain the bleach solution and flush the system thoroughly with fresh water until the bleach odor dissipates.
Reconnecting and Testing
Finally, reconnect the water heater (if it was bypassed) and check for leaks throughout the system. Test the water pump and all faucets to ensure they are functioning properly.
Safety Precautions When Working with RV Antifreeze
Protective Gear
Safety should always be a top priority when working with RV antifreeze. Wear protective gear, including gloves and eye protection, to prevent skin and eye contact.
Ventilation
Work in a well-ventilated area to avoid inhaling fumes.
Storage and Disposal
Proper storage and disposal are crucial. Store antifreeze in a tightly sealed container, out of reach of children and pets. Dispose of used antifreeze according to local regulations. Contact your local waste management facility for guidance on proper disposal methods.
First Aid
In case of skin contact, wash the affected area thoroughly with soap and water. If antifreeze gets into your eyes, flush them immediately with plenty of water for at least fifteen minutes. If antifreeze is ingested, seek immediate medical attention.
Common Mistakes to Avoid
Using the Wrong Type of Antifreeze
Avoid using the wrong type of antifreeze. As emphasized, only use propylene glycol-based RV antifreeze.
Not Draining the Water System Properly
Ensure proper drainage.
Forgetting to Bypass the Water Heater
Do not forget to bypass the water heater.
Neglecting the P-Traps
Overlooking the P-traps is another common error.
Insufficient Flushing in the Spring
Lastly, ensure sufficient flushing in the spring.
Conclusion
Using food safe RV antifreeze is not merely a preference; it’s a necessity for the health and safety of yourself and your loved ones. The peace of mind that comes with knowing your water system is protected and free from harmful chemicals is invaluable. By following the steps outlined in this guide, you can confidently winterize your RV and prepare it for the next adventure, ensuring a safe and enjoyable experience for years to come. Take the time, do it right, and enjoy the open road knowing your RV is well-protected.
