How To Blow Out RV Water Lines With Air A Step-by-Step Guide

Hey guys! So, you love hitting the road in your RV, right? But when winter rolls around, it's time to think about protecting your home on wheels from the freezing temperatures. One of the most crucial steps in winterizing your RV is blowing out the water lines with air. This prevents any water from freezing and potentially bursting your pipes – a disaster nobody wants to deal with! In this guide, we’ll walk you through the entire process, step by step, so you can confidently winterize your RV and keep it in tip-top shape for your next adventure. Let's dive in and get your RV ready for the cold!

Why Blowing Out Your RV Water Lines is Super Important

Okay, so why is blowing out your RV water lines such a big deal? Well, imagine leaving water sitting in your pipes during freezing temperatures. Water expands when it freezes, and that expansion can put a ton of pressure on your plumbing system. This pressure can lead to cracked pipes, damaged fittings, and even a busted water heater. Trust me, these repairs can be super expensive and time-consuming – not the kind of hassle you want before your next road trip. By using compressed air to clear out all the water, you’re essentially removing the risk of freezing damage. It's like giving your RV a cozy winter blanket for its plumbing! Think of it as a preventative measure that saves you from potential headaches and hefty repair bills down the road. Plus, it’s a pretty straightforward process once you get the hang of it, and we’re here to make sure you do.

Blowing out the lines is especially crucial for those hard-to-reach spots in your RV's plumbing system. We're talking about those low-point drains, the nooks and crannies in your water heater, and the intricate network of pipes running throughout your rig. These areas are prime candidates for trapped water, which means they're also prime candidates for freezing and damage. So, taking the time to blow out the lines thoroughly ensures that every drop of water is evicted from your system. We're not just talking about the easily accessible water, but also the water that hides in the curves and dips of your pipes. This comprehensive approach is what truly protects your RV from winter's icy grip. It's a small investment of time that pays off big time in peace of mind and avoided repair costs.

Beyond just preventing catastrophic damage, blowing out your water lines also helps to maintain the overall health of your RV's plumbing system. Standing water, especially when it's stagnant for months, can lead to the growth of mold and bacteria. Not only is this unsanitary, but it can also lead to unpleasant odors and even corrode your pipes over time. By clearing out the water, you're also clearing out the potential for these issues to develop. Think of it as a deep clean for your plumbing, ensuring that everything stays fresh and functional. This is particularly important if you're sensitive to mold or have allergies. A clean, dry plumbing system is a happy plumbing system, and a happy plumbing system means a happy RV owner! So, let's keep those pipes sparkling and free from any unwanted guests, shall we?

Gear Up: What You'll Need to Blow Out Your RV Water Lines

Alright, before we get started, let's make sure you have all the right tools and equipment. Think of it like prepping your ingredients before you start cooking – you want everything within reach! Here’s a rundown of what you’ll need:

• Air Compressor: This is the heart of the operation, guys. You'll need an air compressor that can deliver around 30-40 PSI (pounds per square inch). Most standard air compressors will do the trick, but make sure yours has a regulator so you can control the pressure. Too much pressure can damage your pipes, so it’s super important to keep it in that safe range.
• Air Compressor Adapter: This nifty little gadget connects your air compressor hose to your RV's water inlet. You can find these at most RV supply stores or online. It’s a simple screw-on adapter that makes the connection secure and airtight.
• Wrench: You'll need a wrench to disconnect and reconnect your water lines and fittings. An adjustable wrench is a good option because it can handle different sizes.
• Safety Glasses: Safety first, always! You'll want to protect your eyes from any potential debris or water spray.
• Gloves: Gloves will keep your hands clean and protected while you're working with the plumbing.
• Non-toxic RV Antifreeze: We'll use this later to protect the P-traps and other areas that might still hold water. Make sure it's non-toxic and specifically designed for RVs.
• Water Heater Bypass Kit (if applicable): Some RVs have a bypass kit that allows you to isolate the water heater. If yours does, make sure you use it to avoid filling the water heater with antifreeze – that’s a waste of antifreeze and unnecessary.
• Screwdriver: You might need a screwdriver to open and close drain valves and access certain areas.

Having all these items on hand will make the process smooth and efficient. It's like having a well-stocked toolbox – you're prepared for anything! So, take a quick inventory, gather your gear, and let’s get ready to winterize your RV like pros.

Step-by-Step Guide: Blowing Out Your RV Water Lines with Air

Okay, team, let's get down to business! Here's a step-by-step guide on how to blow out your RV water lines with air. Follow these instructions carefully, and you'll have your RV winterized in no time.

Step 1: Drain the Water System

First things first, we need to get rid of as much water as possible. Start by draining your fresh water tank. Locate the drain valve, usually found underneath the tank, and open it up. Let gravity do its thing and allow all the water to flow out. Next, drain your water heater. But before you do this, make sure the water heater is turned off and the water has cooled down. Removing the drain plug while the water is hot can be dangerous! Once it's cool, remove the drain plug and let the water drain completely. If your RV has a water heater bypass, use it to isolate the water heater – this will prevent antifreeze from entering it later.

Don't forget about your low-point drains. These are typically located at the lowest points in your plumbing system and are designed to drain any remaining water. Open these valves and let them flow until they run dry. This step is super important because these low points are where water tends to collect, making them vulnerable to freezing. We want to make sure every nook and cranny is cleared out. And lastly, flush your toilet until the bowl is empty. We're trying to eliminate as much water as possible before we bring in the air compressor.

Step 2: Connect the Air Compressor

Now it's time to hook up your air compressor. This is where that air compressor adapter comes in handy. Screw the adapter onto your RV's city water inlet. This is the same connection you use when hooking up to water at a campground. Next, connect your air compressor hose to the adapter. Make sure the connection is secure and airtight. You don't want any air leaking out during the process. Set your air compressor to around 30-40 PSI. This is the sweet spot – enough pressure to clear the lines but not so much that you risk damaging your plumbing.

Step 3: Blow Out the Water Lines

With the compressor connected and the pressure set, it's time to start blowing out the lines. Open each faucet, both hot and cold, one at a time. Start with the faucet that’s closest to the water inlet and work your way to the furthest one. This ensures that you’re pushing the water out in the right direction. Let the air run through each faucet until you see a steady stream of air with no more water sputtering out. This might take a few minutes per faucet, so be patient. Don’t forget about the showerhead and any outdoor shower connections you might have. We want to make sure every single line is clear.

Flush the toilet several times as well, allowing the air to push any remaining water out of the lines. This includes the toilet valve and the line leading to the toilet. And don't forget about the outside shower, if you have one. These often get overlooked, but they're just as susceptible to freezing as the indoor plumbing. Repeat this process for every fixture in your RV, ensuring that all the water is expelled. This thoroughness is what will protect your RV from potential freeze damage.

Step 4: Protect the P-Traps

Even after blowing out the lines, there's still a chance that some water might remain in the P-traps under your sinks and shower. These are the U-shaped pipes that prevent sewer gases from entering your RV. To protect them, we'll use non-toxic RV antifreeze. Pour a cup or two of antifreeze down each drain – the kitchen sink, bathroom sink, and shower drain. This will create a protective barrier that prevents any remaining water from freezing and cracking the P-traps. Make sure you use RV antifreeze, not regular automotive antifreeze, as it's non-toxic and safe for your plumbing system.

Step 5: Protect the Water Heater (if not bypassed)

If you weren't able to bypass your water heater, you'll need to add antifreeze to it as well. Drain any remaining water from the water heater and then add enough RV antifreeze to fill it. The amount you'll need depends on the size of your water heater, so check your owner's manual for the specific capacity. Again, make sure you're using non-toxic RV antifreeze. If you did bypass the water heater, you don't need to do this step, which saves you time and antifreeze.

Step 6: Don't Forget the Washing Machine and Ice Maker

If your RV has a washing machine or an ice maker, these appliances need special attention. Consult your owner's manuals for specific winterizing instructions, as the process can vary depending on the model. Generally, you'll need to disconnect the water lines and run the appliance through a winterizing cycle, which typically involves adding antifreeze. Neglecting these appliances can lead to costly repairs, so it’s worth taking the extra time to do it right.

Extra Tips for a Bulletproof Winterization

Alright, you've blown out the water lines, protected the P-traps, and taken care of the water heater. You're in the home stretch! But let's go the extra mile with a few additional tips for a truly bulletproof winterization.

• Inspect Your Plumbing: While you're working on the water lines, take the opportunity to inspect your plumbing for any signs of leaks or damage. Check the fittings, pipes, and connections for cracks or corrosion. Catching these issues early can prevent bigger problems down the road. It's like giving your plumbing a health checkup before winter hits.
• Open All Faucets Slightly: After you've added antifreeze to the P-traps, leave all the faucets slightly open. This will relieve any pressure that might build up in the lines if any water does freeze. It's a simple step that can make a big difference in preventing damage.
• Remove or Protect the Water Filter: If your RV has a water filter, remove it and store it indoors. Water filters can freeze and crack, so it's best to take them out of the equation. If you can't remove the filter, make sure to drain it thoroughly and add a bit of antifreeze to the housing.
• Lubricate Faucets and Valves: Use a silicone-based lubricant to lubricate the faucets and valves. This will help prevent them from sticking or corroding during the winter months. It’s like giving them a little spa treatment to keep them in top shape.
• Check Your Owner's Manual: Your RV's owner's manual is a goldmine of information. It might have specific winterizing instructions for your particular model, so it's always a good idea to give it a read. Every RV is a little different, and the manual can provide valuable insights.

By following these extra tips, you're ensuring that your RV is fully protected from the harsh winter weather. It's all about taking those extra precautions to give yourself peace of mind and a hassle-free start to your next camping season.

Common Mistakes to Avoid When Blowing Out RV Water Lines

Nobody's perfect, and we all make mistakes. But when it comes to winterizing your RV, some mistakes can be costly. Let's talk about some common pitfalls to avoid so you can winterize like a pro.

• Using Too Much Air Pressure: We've said it before, but it's worth repeating: don't overdo it with the air pressure! Exceeding 40 PSI can damage your plumbing. Stick to the 30-40 PSI range for safe and effective winterizing. More pressure doesn't equal better results in this case.
• Forgetting the Low-Point Drains: These little drains are crucial for removing water from the lowest points in your system. Neglecting them can leave water vulnerable to freezing, so make sure you open them up and let them do their job.
• Skipping the Antifreeze: Blowing out the lines is a great first step, but it's not a complete solution. Antifreeze is essential for protecting the P-traps and any other areas where water might linger. Don't skip this step!
• Using the Wrong Antifreeze: Regular automotive antifreeze is a no-go for RVs. It's toxic and can contaminate your water system. Always use non-toxic RV antifreeze, which is specifically designed for this purpose.
• Ignoring the Washing Machine and Ice Maker: These appliances have unique winterizing needs, so don't forget about them. Consult your owner's manuals for specific instructions to avoid damage.
• Not Draining the Water Heater Completely: Leaving water in the water heater can lead to freezing and damage. Make sure you drain it thoroughly before adding antifreeze (if necessary).
• Rushing the Process: Winterizing your RV is not a race. Take your time, follow the steps carefully, and double-check everything. Rushing can lead to mistakes that can cost you time and money in the long run.

By being aware of these common mistakes, you can avoid them and ensure a successful winterization. It's all about paying attention to the details and doing the job right the first time.

Wrapping Up: Enjoy a Worry-Free Winter!

And there you have it, folks! You've successfully learned how to blow out your RV water lines with air and winterize your rig like a seasoned pro. By following these steps and avoiding common mistakes, you can rest easy knowing that your RV is protected from the freezing temperatures. Winterizing might seem like a chore, but it's a crucial part of RV ownership. It's an investment in the longevity of your home on wheels and a guarantee of worry-free adventures to come.

So, take a moment to pat yourself on the back for a job well done. You've not only saved yourself potential headaches and repair bills, but you've also gained valuable knowledge and skills. Now, you can confidently say that you're ready for winter. And when spring rolls around, you'll be able to de-winterize your RV quickly and easily, getting you back on the road and making memories in no time. Happy travels, and stay warm out there!