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Do Class B (B+) Motorhomes Have Bathrooms?

Class B motorhomes will come standard with a bathroom. This is a simple area with a combined sink, shower, and toilet all in one place with no separation known as a wet bath. 

 So, do class B and B+ motorhomes have bathrooms? While there are many different layouts to choose from, all class b models will contain a wet bath or, for some of the newer and more luxurious b+ models, a dry bathroom. With a dry bathroom, the shower has some sort of separation from the sink and shower whereas, with a wet bath, the entire room can and will be wet after showering. This is designed this way as a space saver and is easily cleaned up afterward. If you have any questions on the difference between a class b and b+ model, check out the article on What’s A Class A, B, or C RV (Motorhome) & Everything Between.

 Bathrooms offer convenience when traveling in an RV but remember that they do require proper flushing and clean out after every trip. You may even need to clean it partway through a trip depending on the length of time and the amount of use it receives. For additional information on how to dump your tanks check out this link. It contains an easy step by step process as well as tips to keep it smelling clean.

The Basics Of Your Motorhomes Bathroom In Your Class B

Due to the small size of class B’s the bathrooms must make use of the limited space, and hence wet baths are the best solution to incorporate the sink in the same room as the shower, with the bed located at the back. As where a B+ has a little more space and can have a dry bath, where the shower is separate from the sink and toilet. Most class B bathrooms today are in the middle of the motorhome vs the B+, which is typically in the back of the Motorhome, thus allowing for more space for the bathroom, while the bed is in the middle of the motorhome as a Murphy bed.  

Though your motorhome bathroom may be smaller in size, it still functions similar to that of a bathroom in every RV. The toilet still flushes and the shower and sink still have a drainage system. 

RV Dry Bath VS Wet Bath: How Do They Compare?

The FootPrint of a wet bath vs dry bath

How does the dry bath compare with a wet bath, well first of all, a typical RV dry bath in a class C or B+ is typically fairly small. It measures typically about 5 feet by 7 feet or smaller. So a wet bath is smaller yet! The footprint of a typical wet bath is about 2.5 feet by about 3 to 4 feet long, some are 3 x 3 feet in size. Wet Baths are not exclusive to just Class B's, they can be found in small trailers and Truck campers as well. 

The shower in a Class B wet Bath vs Dry Bath

This is so small in fact, that where you put your feet when you sit on the toilet, is the space for your shower. You are standing over your toilet and using the toilet seat cover as a stand to hold things or sit on the toilet seat cover while taking a shower. The whole area is designed to get wet when you shower, and washed down with each use.

The shower head is typically attached to the sink faucet and works by pulling a lever that diverts water to the hand held shower head. It’s a space saving and multi function in one device. Some of the newer class B motorhomes are coming with a shower curtain inside of the doors and have a split door at about waist high, so you have room to move around with your arms, when the upper door is open and the lower door shut. It’s certainly a small innovation that makes use of a small footprint for a shower. The sink can be either over the toilet or next to the toilet. 

If you want to make sure that you will fit in your wet bath to bath, step inside and pretend to have a shower and see if you have enough room to move around and take a shower. 

In a Class B+, the shower is a true corner shower typically large enough for most people. The shower head will come with it’s own nozzles to turn on or off the water, just as you would find in a typical shower. 

Space use in a wet bath Vs Dry Bath in a Class B

Since the space is so small in a wet bath, newer class B’s just make the whole bathroom a shower, as where in a Class B+, the shower is fully separate from the toilet and sink. It just feels more like a small bathroom in a house, as where the wet bath is really compact and makes use of every inch of space from the walls to the footprint.    

How Does The Bathroom Work In a Class B?

The Fresh water system in a Class B

The sink and shower draws water from the fresh water storage, when not hooked up to city water, just like other RV’s. The fresh water tank in a Class B is typically around 20 to 40 gallons, so there is not that much water to go around for a long shower. 

Class b motorhomes typically have a 6 gallon hot water tank that they come with, unless you have opted to purchase a newer model which many are now coming out with an on demand hot water heater. Now, it is possible to find a class B with a smaller hot water tank, such as 2.7 to 4 gallons, but this is not the norm. 

The WasteWater System in a Class B

The wastewater tanks in a class B are broken down into the grey water tank and the dark water tanks. The grey water tank is typically about the same size as the fresh or larger, so typically 20 gallons to about 40 gallons, while the dark water tank is typically about ⅓ to ½ that of the freshwater tanks so about 10 gallons to 20 gallons. 

The toilet empties into the dark water tank and the sink and shower empties into the grey tank just like any other RV, even though it might be a wet bath. In a B+, the bathroom is a dry bath so it functions just as any other RV bathroom. So when you empty your waste water tanks, it is done exactly like any other RV. If you want more details on it go here. If your Class B has unpleasant odors coming from your Bathroom or toilet, check out this article on how to get rid of odors from your holding tanks. 

In Conclusion

 While most motorhomes will have at least some type of bathroom included, your personal needs will determine whether a wet bath or dry bath is better for you. Depending on where you are camping out at and how long for, you may not even need the bathroom. Make sure to consider when you purchase an RV these factors as well as if you plan on staying in areas that have full access to facilities and showers.


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