Beginner’s Guide to RV Sewer Hose Fittings

Not sure what type of fitting you need for your RV sewer hose? In this article, I'll take you through what you HAVE TO KNOW about sewer hose fittings!

For all you RV owners out there, most will agree that the absolute best aspect of going RVing is dealing with the plumbing system. Wait, are you actually trying to say that the plumbing isn’t the most glorious part of camping?

Alright, it’s time for us to cut the garbage here (no pun intended), the plumbing aspect of RVs is most likely the part that owners and campers dread the most. We’re not saying that everyone hates plumbing (as there are devoted plumbers in the world), but most RVers will agree that it’s not the part of the camping trip that’s really coveted.

The problem, though, is if you want to enjoy all the luxuries of your RV (showering, cooking, cleaning, etc.) you’re going to have to deal with the plumbing system. And as for that said system, it’s quite complex.

Now, we’re not here to break down and explain the entire system. Instead, we want to specifically focus on RV sewer hose fittings for this post.

In general, we want to provide you with a beginner’s guide detailing some critical pieces of information to keep in mind moving forward.

So, what are RV sewer hose fittings?

Image credits: Amazon

As you might expect, the fittings for your RV sewer hose are critical components.

Proper fittings will help to ensure that leaks aren’t a problem when wastewater is moving through the plumbing system in your RV.

They will help to seal in both odors and waste, and proper fittings can really make all the difference.

Wait, that still didn’t really answer the question directly, did it?

In a more technical sense, RV sewer hose fittings are additional connections on a sewer hose that will help to improve the connection between a campsite sewage dumpsite and the waste tank outlet in your RV.

One of the things you’ll notice when you go shopping for them, though, is that there is a wide range of different styles. What’s up with the different types of fittings?

From adapters to hoses to caps to elbows, there are many different types out there and each come with their own features to make them beneficial.

To give you a better idea and understanding of all this, here’s a quick overview of some of the different types and styles that you can come across while shopping for fittings.

Adapters

You can opt for straight or curved (which is typically 45 to 90 degrees) adapters and they will attach directly to the dumpsite or your RV sewer outlet.

If you have limited space available, a curved adapter can be quite handy, but you’ll typically use a straight adapter when connecting to your RV outlet.

Sewer caps

Sewer caps are exactly what you think they probably are.

They’re simply caps that can be attached to your waste tank outlet to close the sewer opening. Caps of this nature are really nice when the RV’s not in use to keep critters and other stuff out.

Elbows

Elbow sewer hose fittings provide a great deal of versatility thanks to the fact that they typically come in both 45-degree and 90-degree options.

They’re almost as nice as our elbows that allow us to bend our arms. They can be used at either end of your RV sewer hose, and they can allow you to angle the hose down.

Connectors

Connectors are appropriately named as they essentially link two parts of the hose. Each part of the hose can have different connectors and as with the best fittings, they’re going to provide a tight and secure connection.

Well, at least the best connectors on the market are going to do that.

What are some buying considerations for RV sewer hose fittings?

There’s probably a good chance that if you’re reading this right now, you have somewhat of an interest in buying some sewer hose fittings for your RV plumbing system.

While the intent of this guide wasn’t to show off the best options on the market, we would like to detail some important buying considerations that you can keep in mind when shopping the market.

Construction

The last thing you want is to buy a fitting that’s going to break down, come loose, or crack quickly due to poor build quality.

At the same time, you don’t really want to buy fittings that have excessive weight.

The happy medium is finding high-quality fittings that aren’t overweight, and that’s why you’ll see virtually all RV plumbing components designed of high-quality plastic. Indeed, though often mocked and ridiculed, plastic can be an excellent material.

Size

Everything needs to be compatible. So, that means that the size of the fittings you buy needs to be sized appropriately with your tank outlet and sewer hose.

If you have a more modernized RV, fitting issues shouldn’t be much of an issue as they should have standardized tank outlets.

The issue can come with older RVs as they may have different sizes. No matter, it’s important for the sizing to be correct (obviously).

Gaskets

When it comes to plumbing components that are designed to prevent leaking, gaskets can be very useful. A gasket is basically just a mechanical seal, and it better allows (in this case) a fitting to properly seal and not leak.

When shopping around, it’s probably best to buy fittings that sport well-designed gaskets.

Weatherproofing

Mother Nature just never lets up, does she? Frequent exposure to the elements can be the death knell for so many products in the world.

When it comes to RV sewer hose fittings, the elements can get them too.

Hence, it’s not a bad idea to buy components that can both be used in freezing conditions and those that can resist intense UV rays from the sun.

If you still have a few questions about RV sewer hose fittings, here’s a super cool YouTube video that pretty much covers everything:

YouTube video

Final thoughts

It’s kind of hard to do a beginner’s guide for any aspect of plumbing as it truly is such a complicated subject matter.

With that said, this should be a good start when it comes to RV sewer hose fittings, and it’s also not as if you need to be an expert plumber to deal with your RV’s plumbing system.

Speaking of plumbing, there’s another topic and question that often gets talked about and asked amongst RVers. That is, of course, what size PVC pipe you need for an RV sewer hose.

Yeah, that’s quite the spicy topic, and if you want to learn more about that go ahead and click that link above! Thanks.

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Tyler Jones

Tyler is much like a swiss knife. Even though he has a degree in Computer Science, he knows almost everything there is to know about camping. He has been writing for HeadlessNomad since 2021 and has contributed with over 100 articles. If you have an outdoor-related question, then Tyler much likely knows the answer.