10 Best Marine Toilets (Reviews Updated 2022)

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Having a toilet during prolonged boating expeditions are necessary. After all, if you find yourself in the middle of the open water with no means of relieving yourself, things can get messy really fast.

Luckily, there are plenty of solutions to have for your vessel, all of which offer varying levels of practicality and commodity.

We’ve gone through dozens of the best marine toilet reviews to bring you the very best ones for your boat. We took into account size, capacity, material, strength, price, and more to come up with our rankings.

Best Marine Toilets

Here are the 10 best marine toilets.

1. SereneLife Marine Toilet Portable Potty Seat

Serenelife Marine Toilet Portable Potty Seat

This unit uses a 5.3gal waste tank that allows for easy access and quick disposal. Its double seal drain valve ensures that you won’t have any trouble with odors or leaks. The reservoir can store enough water for a maximum of 50 flushes, which is more than enough for one long trip.

This toilet comes with an indicator that tells you if it needs emptying and being made out of high-density PE that’s durable and resistant to corrosion.

Notable Features You Need To Know About:

  • Large waste tank
  • 50 flushes for every full tank
  • Quality material
  • Easy cleaning
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2. Camco Premium Marine Toilet Portable

Camco Premium Marine Toilet Portable

Despite having the same waste capacity as the previous model, this Camco toilet is more significant in size. And it provides better seating space and overall comfort, especially for larger people. The interior of this toilet uses ABS, a material that is extremely odor resistant and easy to clean.

This unit’s waste tank is outfitted with a swivel-type dumping elbow, making it practical to empty. It also has a very lightweight, even when full, so you can easily carry it around in most situations.

Notable Features You Need To Know About:

  • Comfortable seat
  • Odor-resistant ABS
  • Comes with treatment pack
  • Swivel-type dumping elbow
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3. Cleanwaste Portable Marine Toilet (with Waste Kit)

Cleanwaste Portable Marine Toilet With Waste Kit

This toilet is very different among the rest of the models in our review since it doesn’t require any assembly, and comes neatly folded inside its briefcase. This case comes with a carry handle, and it’s light enough to carry with you. It comes with attached legs that add stability, and can even act as a seat.

Underneath the unit is a durable mesh holder to support the bag that collects waste.  You’re given a waste-kit that includes the bag and a powder that eliminates odors and makes waste more solid. The bag is also bio-degradable. Despite having an easy setup and a very portable frame, this toilet is very durable and can support larger individuals easily.

Notable Features You Need To Know About:

  • Portable frame
  • Strong legs
  • Waste kit included
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4. Nature’s Head Composting Self Contained Marine Toilet

Nature's Head Composting Self Contained Marine Toilet


This composting toilet has a very eco-friendly design. You can bring it along practically anywhere, and it has the unique feature of turning waste into fertilizer. The handle located on its side is used to set the waste mixture inside to dry it out and eliminate odors.

It’s also user-friendly when it comes to setting it up. You don’t have to “install” it into your vessel. However, this toilet is a bit larger than most units, so be sure to check the dimensions of free space on your vessel before locking in on a purchase.

Notable Features You Need To Know About:

  • Composting mechanism
  • Eco-friendly
  • No installation required
  • Durable build
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5. Porta Potti Thetford White Marine Toilet (565E)

Porta Potti Thetford White Marine Toilet 565e


This Porta Potti model features an excellent design that features easy cleaning and an aesthetic appeal to boot. The toilet can hold 5.5gal of waste and 4gal of water, capable of 56 flushes. The flushing system is powered by a battery, making the whole process pretty quiet and capable.

This unit comes with an indicator to tell you when it needs emptying, and this process is made a little less messy with a rotating spout to avoid any backlash. It also features an ergonomic handle to make transport easier. Finally, it comes with a 3-year manufacturer’s warranty that’s useful in the long run in case something unexpected happens.

Notable Features You Need To Know About:

  • High-capacity waste tank
  • 3-year manufacturer’s warranty
  • The silent and robust flushing system
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6. ZIMMER Marine Toilet Detachable Tanks

Zimmer Marine Toilet Detachable Tanks


The Zimmer toilet makes for an excellent investment. This durable and lightweight unit is made from polyethylene, featuring a leak-proof design that prevents any potential accidents from happening. It has a waste capacity of 5gal and a water capacity of 3gal. This gives you between 50 to 70 flushes for every full tank of water.

This toilet is so compact and light, making it more convenient to store and transport, but the seat is big enough to offer sufficient comfort and support. With its sliding vent that prevents the escape of smells and a few deodorizing tablets, you won’t have to put up with the smell of waste in your vessel.

Notable Features You Need To Know About:

  • Comfortable seat
  • Portable design
  • Both tanks have convenient handles
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7. JAXPETY Outdoor Indoor Porta Potti Marine Toilet

Jaxpety Outdoor Indoor Porta Potti Marine Toilet


If you’re looking for a unit that’s easy on your wallet, then this marine toilet from JAXPETY is a good option. It has a smaller waste capacity of 2.8 gallons, so this is designed with shorter trips in mind. However, this also means that it won’t be too hard to empty, and the overall weight and size makes this a very portable unit.

After doing your business, it can take one or two flushes to get the waste down. The odor control system is very useful. All you need to do is seal the sliding valve off after each use. Discharge and operation are also splash-free. Finally, the entire thing is constructed with ABS polymer, a material that’s durable, easy to clean, and odor-resistant.

Notable Features You Need To Know About:

  • Affordable price
  • Compact and portable
  • Odor-resistant material
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8. Jabsco Manual Head Twist ‘n’ Lock Marine Toilet

Jabsco Manual Head Twist 'n' Lock Marine Toilet


This manual-type unit is very efficient and straightforward. It uses a lock that prevents the backflow of waste, an effective flush control, and a vacuum breaker to allow more comfortable pumping. The wooden seat coated in enamel gives a great aesthetic appeal and makes it more convenient to clean. The entire design doesn’t have any crevices that might allow the proliferation of bacteria. All in all, this is a good choice if you’re looking for manual marine toilets made from quality materials and featuring a useful design.

Notable Features You Need To Know About:

  • Sleek look
  • Safety lock
  • Efficient pumping mechanism
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9. Johnson Pumps Manual AquaT Compact Marine Toilet

Johnson Pumps Manual Aquat Compact Marine Toilet


The AquaT will offer a similar feel to the last unit we mentioned, but it features a more compact size and an affordable price tag. This manual toilet weighs at 21lbs. The bowl’s material is vitreous porcelain that’s easy to clean, and the connecting hardware uses materials that are corrosion resistant. The pump is placeable on both sides, and it uses a reliable piston pump that flushes waste efficiently. This is an excellent toilet if you want quiet flushing, and its ergonomic design makes it comfortable to sit on even for prolonged periods.

Notable Features You Need To Know About:

  • Quiet flush
  • Ergonomic design
  • Compact build
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10. Dometic Marine Toilet Portable

Dometic Marine Toilet Portable


This toilet, much like the other models on our list, is comfortable, durable, and comes at an affordable price. Being made from ABS plastic, you’re sure to have an easier time cleaning this unit. And it also has a finish that makes it scratch-resistant, a prevalent problem among plastic models. With a 5gal waste capacity, this unit is built for longer trips, and it has an indicator that tells you when it’s time to empty. Finally, this toilet features a comfortable seat and easy flushing.

Notable Features You Need To Know About:

  • Can be installed
  • ABS material with finish
  • Latching lid
  • Button flushing
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What’s the best process of finding the right marine toilet? – Creating a checklist of what you want and don’t want. Read our guide and learn the critical toilet components you need to look out for.

Buyer’s Guide – Choosing The Right Marine Toilet For Your Boat

Best Marine Toilet ReviewsSelecting the best toilet for your vessel depends on your needs and preferences. It also depends on your boat’s dimensions and your budget.

Here are a couple of things you should take note of:


  • Cassette toilet

This type is very portable (can also be installed permanently), but you have to empty and rinse it after being filled, which might be a hassle to some.

  • Pump-out toilet

This type comes either in a manual or electric design. For the former, you have to do the flushing and cleaning yourself. Flushing typically requires more than ten pulls from the lever, after which it’s turned to the other side to let freshwater wash into the system. An electronic one, on the other hand, can be more expensive, but you don’t have to pump it yourself.

  • Composting toilet

This type is very eco-friendly, not using up any water, and every waste is turned into useful fertilizer. They usually are larger than the conventional marine toilet and more expensive as well. Still, this is the right choice if you’re environmentally conscious. It’s also low maintenance and doesn’t pose any clogging risks

Environmental Impact

This is a growing concern in today’s climate, and doing your part to help out the environment should be a high priority. You need to follow the rules and regulations regarding boat disposal. Dumping all your garbage and waste into the water isn’t an option. You should also use eco-friendly paper and odor removal devices.


Since these toilets are more likely to get exposed to harsher conditions, they must be made from durable materials. Aside from the hardware inside the toilets which are generally built with stainless steel to prevent corrosion, here are the two most common materials used:

  • Plastic

This material weighs less and is more damage resistant, although some might be harder to clean than porcelain.

  • Porcelain

These are heavier, but looks better and has a surface that allows easier cleaning.

Size And Installation

Always check for the available space in your vessel before choosing a toilet. Afterward, compare the measurements to see if the toilet you want will fit the interior of your boat. Some boat toilets require drilling holes into your boat for installation, while for some, it’s not necessary.


This is a huge issue and should be one of your top priorities. Having to endure the smell of gross waste in a very small and confined vessel can be a nightmare. Getting a toilet with a tightly sealed holding tank and outfitted with deodorizers can easily bypass this issue.


Some toilets flush very loudly, and this might prove an inconvenience for some situations. While not really an issue for most, getting a toilet that offers silent flushing is always a plus. A silent flushing system is also usually more powerful, so you don’t have to use multiple flushes to bring down all the waste.

Some of your queries still left unanswered? Here are our answers to some the most frequently asked questions regarding marine toilets that might help you out:

Frequently Asked Questions

Here are questions frequently asked about the best boat toilet.

What makes a marine toilet different from a standard unit?

These toilets, as the name suggests, are built with marine environments in mind. They are often portable and very durable. And they can come with both manual and electronic flushing systems.

Are marine toilets really necessary?

If you’re spending a long time in the middle of the open waters, then yes, you need a toilet for your boat. This way, you don’t have to go ashore every time someone in your party really needs to go.

How do you install one?

While not very difficult, installation requires a bit of pre-measuring and some elbow grease. It’s always best to read the manufacturer’s instruction manual first because this will tell you how to install your specific boat model properly. Usually, you have to drill in the holes, making sure that your toilet is positioned in a way that you can use its handle correctly if it has manual pumping. Afterward, you can fix the toilet in place. Connect every hose in the right outlets as well as any wiring if you have an electronic unit.

Boat Toilet Review Conclusion

By picking the right toilet for your needs, your prolonged boating adventures will be more stress-free. If you make sure to check each consideration, you stand a higher chance of finding the best marine toilet. Always be sure to check the dimensions of your available space first before anything else. Otherwise, you might have to spend a lot of effort refunding a unit that doesn’t fit your vessel.