Black Tank RV Tips: Attaching Your Sewer Hose & Running a Black Tank Flush

If you’re new to RVing, there are a few things you need to know before setting out on a camping trip in your new or used RV. A couple of essential pieces of camping knowledge are dealing with your black tank, knowing how to attach your sewer hose, and how to flush your black tank. Sure, these are gross and messy topics, but if you handle them properly, you’ll be able to enjoy a clean, safe, and healthy camping trip in your RV. Follow our black tank RV tips below to make this easy and hassle-free!

How to Attach Your Sewer Hose to Your Black Tank

Sewer hoses for your RV typically come in a variety of lengths, such as 10, 15, and 20 feet. You can use extension hoses if the sewer outlet on your RV is more than 10 feet away from your dump station.

You’re going to want to attach the clear elbow lock onto one end of the house. This is what attaches to the dump station, and it’s important that you don’t go any further if you’re missing this piece. The clear elbow allows you to see what’s coming out of the tank, whether it’s empty, as well as the clarity of the water.

Black Tank RV Tips

The other end of the hose has four locking tabs. These lock directly onto four tabs on your RV’s sewer mount. It is really that easy – just click it into place.

First, locate on your trailer or motor home where the sewer outlet is. If there’s more than one, use whichever is more accessible.

Once you lock the tabs from the hose onto the sewer mount, you’ll twist it to the right until it locks firmly into place.

You have to remove the cap from the valve on the sewer mount, so make sure the handle to do so is in the correct position first. Have questions about how it looks or needs to look? We can help, so contact us before you even set off to make sure you feel certain and confident of what to do. This is definitely something you want to get right the first time, so make sure you have that understanding squared away before dumping your black tank!

You will always want to empty your black tank first, followed by your grey tank. The soap and water that empty from the grey tank flushes the sewer hose, allowing it to be cleaned as you go.

What’s a Black Tank Flush – And Why Do I Need It?

Simply put, a black tank flush keeps your black tank as clean as possible. If you’re able to, it’s ideal to do a black tank flush while you dump. Similarly to running the grey tank water through the sewer hose to clean it after it’s emptied the tank, a black tank flush runs clean water through the black tank while or just after you dump to clean out the tank.

First, identify where your black tank flush connection is, and label it clearly if it isn’t already. It’s essential to not get this one mixed up with your city water connection!

Take your hose and hook up the same way as city water connection (like a regular garden hose). Once you have a good connection to the gasket, you’re almost ready!

Whether you’ve already dumped or you’re doing the tank flush at essentially the same time, it’s important to have the black tank valve open before you turn on the water. If there’s anything inside the tank that has caused a clog, you don’t want the water you’re pumping in to pressurize the tank. So, make sure the valve is open first. Once you have the water running, you’re simply going to run the flush until you see clear water coming through the clear elbow lock.

We want to help make sure you have the best camping experience possible, so if you have questions about a black tank flush or hooking up to the dump site, contact us today!


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