How To Install An RV Waste Gate Valve With An Insulated Underbelly

Gary Evans
by Gary Evans

Few things are as frightening as seeing the waste gate valve of your RV malfunctioning. Once something like that happens, it usually means you’ll need to make some important yet unpleasant repairs. Still, that situation could also present you with an opportunity to improve your RV.

Since you’re replacing the waste gate valve on your RV anyway, you might want to use something that offers more protection. An RV waste gate valve with an insulated underbelly is precisely the addition that can protect your RV’s tanks better.

Installing the waste gate valve starts with removing the underbelly cover that’s already in place. You can then start cleaning the flanges before installing and then lubricating the flange seals. Finish up by installing the waste gate valve and make sure that the space is equal between it and the flanges.

Repairing the waste gate valve is a must if you plan on using the RV again sometime soon. See how you can fix that valve and improve your RV in the process by reading the rest of this article.

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The Signs Your RV’s Waste Gate Valve Needs to Be Replaced

It’s not hard to tell if your RV’s waste gate valve needs to be replaced. An unpleasant smell can tip you off to the presence of a leaky RV valve. Even if your RV is currently parked, the strong smell coming from a waste tank will be hard to miss.

Liquid dripping from your RV is another possible indicator that there’s an issue with one of the valves. You need to address that leaking right away or else your RV could wind up causing quite a big mess.

The Causes of RV Waste Gate Valve Issues

The waste gate valve on your RV is pretty durable, but it’s not immune from damage. Detailed below are some of the main reasons why that component of your RV can sometimes experience problems.

Improper Installation

Dealing with the waste tank of an RV is no fun. Many of us just want to do the bare minimum and say we’re done with it as soon as possible.

The problem is that we can sometimes make mistakes while rushing like that. Fail to secure the waste gate valve properly and it could end up getting damaged significantly. Replacing it will become necessary sooner than expected.


Your RV’s toilet is similar to the one you have at home because they both need to be used carefully. Just like with your home toilet, you should avoid flushing everything down the one you have inside your RV. Flushing larger objects in particular can cause clogs to form.

Once something gets stuck inside the tank, it can mess up with the entire system down there. The waste gate valve is one of the things that may get damaged significantly due to clogging.

Wear and Tear

The valves that protect your RV’s waste tanks will not last forever. You will have to replace them at some point. It’s actually a good idea to replace them earlier in order to prevent a big mess.

Why Do You Need a Waste Gate Valve with Underbelly Insulation?

RV owners don’t have to go out of their way to purchase a waste gate valve with underbelly insulation. It’s not a necessity per se, but it can be a great addition to your RV. The reasons below explain in greater detail why purchasing a waste gate valve with underbelly insulation is worth it.

Protection against Freezing Temperatures

Underbelly insulation can come in really handy depending on where you live. Freezing temperatures that are quite common in certain parts of the country can wreak havoc on some vehicles. Even an RV is not immune from that kind of damage.

The underbelly insulation protects against the threat posed by extreme temperatures. It keeps the underside of your RV in better condition. You can even cut down on the amount of maintenance work you need to handle thanks to the underbelly insulation.

Protection against Debris

Apart from the freezing temperatures, the underbelly insulation also provides an added layer of protection against debris. Random rocks or clumps of dirt can damage your RV. By installing underbelly insulation, you can protect your RV better against those potential hazards.

More Efficient Fuel Usage

The insulation you’re adding to your RV can also help improve how efficient it is when it comes to using fuel. You can get more out of whichever type of fuel you’re using and save money by adding insulation to your RV.

Installing the Waste Gate Valve with Underbelly Insulation

It’s now time to tackle the process of installing the waste gate valve with underbelly insulation. This job can be a bit tricky so make sure you follow the instructions carefully.

Step 1: Prepare the Items Needed for Insulation

Aside from the valve, you’ll also need an angle grinder, a drill, flange seals, a lubricant, nuts, screws, and a screwdriver. A silicone lubricant will work great here.

Step 2: Get the Underbelly Cover Out of the Way

Removing the underbelly cover for your RV can be time-consuming, but it’s a pretty straightforward task. Use your angle grinder and wrench to remove the nuts and bolts holding the cover in place. You may have to pull out some additional components as well depending on what kind of RV you have.

Step 3: Put the Flange Seals in Position

You can now turn your attention to the flanges near where the waste gate valve needs to be. Clean them up first so that they are easier to work with. Wiping the flanges clean with some soapy water should do the trick.

Next, apply some lubricant on the flange seals. Applying the lubricant makes the flange seals easier to install. From there, you can simply slide the flange seals into their appropriate spots.

Step 4: Install the Waste Gate Valve

The time has come to install the waste gate valve. Find the space between the flange seals and slide the waste gate valve in there. The two flanges should be evenly spaced away from the valve. Now that the waste gate valve is in position, you can lock it into place by using the necessary nuts and bolts. Be careful not to miss anything or else you could weaken the seal of the valve.

Step 5: Lubricate the Waste Gate Valve

This last step isn’t completely necessary, but it will improve the performance of your new waste gate valve. With your RV’s tanks empty, you can move forward with lubricating the waste gate valve.

Close the waste gate valve and then use a drill to create a hole above the pull shaft. After that, grab the lubricant and spray the hole you just made with it. Start moving the pull shaft back and forth now to distribute the lubricant. To finish up, get a screw and drive that into the hole. That screw will prevent any waste from leaking out of the waste tank accidentally.

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Related Questions

How Do You Maintain Your RV’s Waste Tanks?

Many of the problems that plague the RV’s septic system stem from poor maintenance. Since most families only use RVs for vacations, they may not pay enough attention to completely clean it out. You cannot be surprised if the tanks start to have issues if you fail to maintain them regularly.Maintaining the RV tanks isn’t that difficult. Cleaning up the toilet will help, but you really want to focus on the tanks. You can find special products that are formulated to clean RV tanks. If you use your RV regularly, treating its tanks with those aforementioned products quarterly will be a good idea.Being more careful with how you dispose of waste will also be helpful. Avoid throwing large objects down any kind of drain to keep the RV’s septic system intact.

How Often Should You Dump the Contents of Your RV’s Waste Tanks?

Dumping the contents of your RV’s waste tanks is also an important part of maintenance. At a minimum, you should flush the tanks every time you finish a road trip. Flushing the RV’s waste tanks monthly would be even better. By taking the time to clear out the waste tanks that often, you can further delay the onset of corrosion.

Gary Evans
Gary Evans

Gary Evans is passionate about home improvement. He loves finding out how to make improvements in the easiest, most practical, and most affordable ways. Upgrading his home kitchen is one of his ongoing hobbies. Gary is also a long-time content creator and enjoys spending his free time tending to his hydroponic vegetable garden.

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