Success usually comes to those who are too busy to be looking for it.Henry David Thoreau

Dometic 320 RV Toilet Problems

Dometic 320 RV Toilet Problems

Are you tired of dealing with pesky toilet problems in your RV? Look no further! This comprehensive guide will dive into the world of Dometic 320 RV toilet problems and equip you with the knowledge and tools to diagnose and fix them like a pro. Say goodbye to clogged toilets, leaky seals, and unpleasant odors – it’s time to reclaim the comfort and convenience of your home on wheels! So buckle up, RV enthusiasts, because we’re about to embark on a troubleshooting adventure that will leave your bathroom sparkly clean and problem-free.

What Is an RV Toilet, and How Does It Work?

An RV toilet is a must-have addition to any recreational vehicle. It’s an essential piece of the puzzle for happy camping trips and long road trips with your family or friends. Before you can properly troubleshoot any issues that might come up, it’s important to understand how they work.

RV toilets are designed with a complex system of multiple components that work harmoniously to ensure efficient flushing and proper disposal of waste. In general, an RV toilet consists of three key parts: the holding tank, which securely contains the waste until it can be appropriately discarded; a flushing mechanism, which effectively flushes the waste from the bowl into the holding tank; and a sealant that forms a tight seal between the tank and the bowl, preventing any leakage or odor. This well-coordinated system ensures a hygienic and convenient toilet experience for RV owners while on the road.

The holding tank, located beneath the RV toilet, serves as a repository for solid waste that is flushed down from the bowl. When you press down on the flushing handle, it triggers the opening of a valve, allowing water to flow into the holding tank. As the water fills the tank, it exerts pressure, effectively pushing the waste out of the RV toilet and directing it into a separate tank situated outside the vehicle. To ensure a watertight system, a sealant is applied to prevent any unpleasant odors or leaks from occurring, providing a hassle-free and hygienic experience [1].

What Is an RV Toilet, and How

Features of Dometic 320 RV Toilet

Simple Hands-free Flushing

The Dometic 320 RV Toilet boasts a convenient and hygienic hands-free flushing system, designed to provide effortless operation. With this innovative feature, you can effortlessly flush the toilet without having to make direct contact with the handle, ensuring that your hands stay clean and free from bacteria. In addition, the foot pedal mechanism simplifies the flushing process, allowing you to save valuable time and energy. Experience the ultimate in convenience and cleanliness with the Dometic 320 RV Toilet.

Real Ceramic Bowl

The Dometic 320 RV Toilet is crafted with a genuine ceramic bowl, meticulously designed to elevate your sanitation standards and enhance durability. This exceptional material not only resists staining and inhibits bacterial growth, but it also grants you the tranquility and assurance you seek while using the toilet. The ceramic construction further boasts a flawlessly smooth finish, ensuring utmost comfort during your hygiene routine. Immerse yourself in an unparalleled, hygienic experience that endures with the remarkable Dometic 320 RV Toilet.

Toilet Seat for Comfort Security

The Dometic 320 RV Toilet is the perfect choice for a comfortable and secure bathroom experience in your recreational vehicle. With its thoughtfully designed toilet seat, you can be assured of both safety and comfort during use. The ergonomically shaped seat, made from smooth plastic, provides an extra layer of relaxation while ensuring a pleasant experience. Not only that, the easy-to-clean surface of the seat makes maintenance a breeze, saving you time and effort. Upgrade your RV bathroom and indulge in an unbeatable and luxurious experience with the Dometic 320 RV Toilet.

Full Comfort Height

The Dometic 320 RV Toilet further offers enhanced convenience with its full comfort height design. This feature ensures that you don’t have to crouch or struggle to use the toilet, granting you a more relaxed and comfortable bathroom experience. With this clever innovation, you can now enjoy a hassle-free trip without having to worry about uncomfortable restroom trips.

Full Comfort Height

Water Saver Odorless Technology

The Dometic 320 RV Toilet is also designed to be efficient and economical, thanks to its water-saving and odorless technology. This system helps you conserve precious resources while providing maximum performance with minimum effort. Not only that, the air-tight seal prevents odors from spreading out of the toilet, allowing you to enjoy a pleasant and odorless bathroom experience. With the exceptional Dometic 320 RV Toilet, you can now enjoy peak performance without having to sacrifice comfort or convenience.

Hand Spray Ancillary

The Dometic 320 RV Toilet also features an ancillary hand spray for added convenience. With this attachment, you can now clean hard-to-reach areas with ease, ensuring that your bathroom is always spotless and hygienic. Whether you’re a full-time RV enthusiast or a weekend warrior, the Dometic 320 RV Toilet provides the perfect solution for your cleaning needs.

Easy Installation Maintenance

The Dometic 320 RV Toilet was designed with a user-friendly installation process and minimal maintenance requirements. This feature makes it an ideal choice for any RV owner, as you won’t have to stress over complicated installation instructions or inconvenient maintenance routines. With the robust Dometic 320 RV Toilet, you can now enjoy a hassle-free bathroom experience [2].

Pros and Cons of Dometic 320 RV Toilet

When you’re out on the open road, it’s important to have a reliable and comfortable RV toilet. The Dometic 320 RV Toilet provides an ideal solution for those who are looking for a quality portable bathroom. It offers several advantages that make it a great choice for your mobile home or campervan:


  • Easy installation: The 320 RV toilet is very easy to install. It doesn’t require any special tools or skills and can be installed in just a few minutes.
  • Compact design: This model is designed to fit in even the smallest of spaces with its compact design. It’s also lightweight, making it easy to move from one place to another.
  • Easy to clean: The 320 RV toilet features a removable bowl for easy cleaning and a one-piece construction that makes it simple to keep the toilet free of germs and bacteria.
  • Long lasting: With its durable construction, this model will last for many years with proper care and maintenance. Its high-quality materials ensure that you won’t need to replace it anytime soon.


  • Limited accessories: While the 320 RV toilet offers some basic features, it doesn’t come with any additional accessories like a shower or sink. This means you’ll need to purchase those separately if you want them.
  • Low water pressure: The low water pressure can be an issue when using the Dometic 320 RV toilet. If you’re looking for a powerful flush, you may want to consider a more advanced model.
  • Price: The price of this model is slightly higher than other options on the market. However, if you’re looking for a reliable and durable RV toilet, it can be worth the extra cost.

Overall, the Dometic 320 RV Toilet is a great choice for those who are looking for an easy-to-install and reliable portable bathroom. It offers plenty of benefits, such as a compact design, easy cleaning, and long-lasting durability. However, it does have some drawbacks such as limited accessories and low water pressure. But if you’re willing to invest in a quality product, then the Dometic 320 RV Toilet is worth considering [3].

Pros and Cons

Dometic 320 RV Toilet Problems and Troubleshooting Tips

Water Leakage

The most common issue with the 320 RV toilet is water leakage. This can occur if the seal between the tank and bowl has worn out or if there’s a crack in either part. It’s important to address this problem promptly to avoid further damage.

To fix the water leakage, you’ll need to replace the seal or repair any cracks. When replacing the seal, ensure that you select a high-quality replacement that is compatible with your specific toilet model. Properly installing the new seal will help restore the tight seal between the tank and bowl, preventing any future leaks.

If you’re unsure of how to replace the seal or repair a crack, it’s always recommended to seek professional help. A certified plumber or RV technician can provide the expertise needed to address the issue effectively and ensure a long-lasting solution.

In the meantime, if you’re having difficulty determining the exact source of the leak, try using a flashlight to inspect the toilet more closely. Look for any signs of water pooling, discoloration, or cracks in the tank or bowl. This closer examination can help you narrow down the problem area before taking further action.

Remember, addressing water leakage issues promptly can help maintain the functionality and longevity of your 320 RV toilet, ensuring a worry-free and comfortable experience during your travels.

Poor Flushing Performance

Another common problem with this model is poor flushing performance. This can occur if there is an issue with the water supply or bowl design. To fix the issue, try increasing the water pressure by adjusting the tank’s fill valve. If this doesn’t improve the performance, then it may be time to replace the flush valve or bowl gasket.

If you’re struggling to find a solution for your poor flushing performance issues, consider seeking professional help from an RV technician or certified plumber. They’ll be able to diagnose the exact cause of the problem and provide a tailored solution that will restore your 320 RV toilet’s flushing performance.

Additionally, it’s important to inspect the bowl’s design for any obstructions or blockages. This can be done by using a flashlight to check for debris below the water line. Remove any objects that may be blocking the flush valve and assess the overall performance of the toilet after this step.

Poor Flushing Performance

Spreading Bad Odor

The 320 RV toilet is equipped with a water-saving technology that helps prevent bad odors from spreading. However, if the toilet isn’t properly maintained, it can start to emit unpleasant smells. The most common cause of this problem is a buildup of waste and debris in the bowl or tank. To fix these issues, you should always practice regular maintenance by cleaning the toilet with a suitable cleanser and scrubbing brush.

Additionally, you should check for any cracks or leaks in the tank or bowl and promptly take action to repair them. This will help keep water from escaping and prevent odors from developing inside the RV toilet.

Finally, consider investing in an air freshener specifically designed for RVs. These products can help to neutralize any odors that may be present in the vehicle and create a more pleasant experience for you and your guests.

Restricted Water Flow

If you’re experiencing restricted water flow from the toilet, then there are a few steps you can take to help improve it. The first step is to make sure that the tank’s fill valve is set correctly. If this doesn’t resolve the issue, then consider replacing the tank or bowl gasket. Both of these components can become worn over time and will need to be replaced to restore the water flow.

It’s important to note that restricted water flow can also be caused by a buildup of debris or waste in the tank or bowl. To prevent this from happening, make sure you practice regular maintenance and clean your 320 RV toilet with a suitable cleanser and brush every few months.

Lack of Swirl Action

The Dometic 320 RV Toilet is designed with a swirl action feature that helps move water and waste out of the bowl more efficiently. If you’re not seeing this in your toilet, then it could be an indication that a blockage or obstruction is preventing it from happening.

To fix this issue, use a flashlight to check for any debris or objects below the water line. Remove any blockages that you can easily reach and inspect the swirl action after this step.

If the problem persists, then it may be time to replace certain components of your 320 RV toilet. This could include items such as flush valve seals or float valves which help regulate the water level in the tank and bowl and maintain the swirl action.

Free Flowing Water

If you’re experiencing free-flowing water from the bowl of your 320 RV toilet, then it could be a sign that the flush valve or seal is worn out. The best way to fix this issue is by replacing both components with ones made specifically for your model. This will help restore the functionality and ensure there’s no unnecessary water wastage.

Free Flowing Water

How To Clean Dometic 320 Toilet Bowl?

Cleaning the Dometic 320 Toilet Bowl is easy and hassle-free. Here’s what you need to do:

  1. Start by flushing the toilet to empty the bowl of any waste and debris.
  2. Pour one cup of household bleach into the bowl and let it sit for 30 minutes.
  3. After 30 minutes, refill the toilet bowl with clean water and use a toilet brush to scrub the inside of the bowl.
  4. Flush the toilet once more to rinse out any remaining bleach and debris.
  5. Pour one cup of white vinegar into the bowl and let it sit for 30 minutes.
  6. After 30 minutes, flush the toilet again to rinse out the vinegar and any remaining debris.
  7. Finally, use a clean towel to dry off the inside of the bowl before using it again.

By following these simple steps, you can easily keep your Dometic 320 Toilet Bowl clean and free of bacteria and grime. Remember: regular cleaning is essential for any RV toilet maintenance routine!


Why is my RV toilet not working?

If your RV toilet is not working, there are a few steps you can take to troubleshoot and determine the cause of the issue. First, make sure that all valves in the water system are in the correct position. If they’re not, then it could be preventing proper water flow to and from the toilet bowl.

Next, inspect the water connections to make sure they are all properly secured. A loose connection can also lead to problems with your RV toilet. Finally, check for blockages in the toilet bowl and pipe. If a blockage is present, it could be preventing proper flushing of the toilet. If the issue persists after troubleshooting these common issues, contact a qualified RV service technician to assess and repair the toilet.

How can I prevent clogs in my RV toilet?

The best way to prevent clogs in your RV toilet is to limit what goes down the drain. Avoid flushing anything that isn’t designed for use in an RV toilet, such as paper towels or feminine hygiene products.

You can also use an RV toilet treatment product to help break down waste and reduce odors. Regularly adding a few drops of RV toilet treatment to your bowl with each flush will help keep the tank from clogging, as well as make your RV smell fresher.

What should I do if my RV toilet is leaking?

If your RV toilet is leaking, the best start is to inspect all connections and valves. Make sure that everything is properly tightened or adjusted if needed. If the leaking persists, it may be a sign of a more serious issue such as a broken seal or cracked tank. Contact an experienced RV technician for further assistance and repairs.

How often should I clean my RV toilet?

It’s important to keep your RV toilet clean and properly maintained. Depending on how often you use the toilet, it’s recommended that you give it a deep cleaning every two to three months. This will help ensure proper flushing performance over time as well as reduce unpleasant odors.

When cleaning your RV toilet, start by removing all solid waste that has been collected in the bowl, then give it a scrub with hot soapy water. Finally, add some RV toilet treatment to help break down waste and freshen up your RV.

Useful Video: Dometic 320 Toilet Issues will a seal fix the leak

Conclusion Paragraph

Dometic 320 RV Toilet is a great thing for campers, however, it can have some problems from time to time. Fortunately, with the above tips and tricks, many of the most common issues can be easily fixed. If your RV toilet is still not working after you have attempted some of these troubleshooting methods, it may be best to take it to a professional mechanic for repair. No matter what you decide though, Dometic 320 RV toilets are designed for long-lasting and reliable service, so your problem can be easily solved.

  1. https://indiecampers.com/blog/camping-toilet-in-an-rv/
  2. https://www.dometic.com/en-ca/outdoor/ca/products/hygiene-and-sanitation/sanitation/rv-toilets/dometic-320-_-25297
  3. https://toiletconsumer.com/dometic-320-toilet-review/