Best RV Macerator Pump of 2020 (Round-up Review)

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When you are removing sewage from the RV, you might experience the struggle of getting everything out due to blockages caused by large chunks of waste.

This painful process can be solved by adding the services of a macerator pump. This pump will grind up any chunks or pieces into a fine slurry. This slurry will be able to travel through the smallest of hoses into the sewage system.

This article will help you understand the ins and outs of these products and help you learn more about which products are currently on the market that are best and their pros and cons. 

Comparison Chart of the Best RV Macerator Pumps

  • Compatible with standard 3'' RV waste outlets, the SewerFlo is best-rated on Amazon
  • Garden hose inlet removes debris, allowing easy cleaning
  • The pump can be removed and attached easily
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  • Easily connects to most RV dump receptacles, thus preventing accidental spillage
  • Its fast operation allows it to empty the tank in minutes
  • The self-cleaning feature helps to save water
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  • This unit is capable of emptying a 30-gallon tank within 3 minutes, making it the best 115-volt RV Macerator Pump
  • Self-priming pump can be mounted below or above the tank
  • Breaks down waste to a maximum particle size of 1/8''
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  • Can be connected directly to an RV waste outlet, making it the best Flojet RV Macerator Pump
  • Designed with a hand-held, remote on/off switch
  • A rugged, portable storage case is included with the unit
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  • Compatible with all Clean Dump extension hoses, this model is the best portable RV macerator pump
  • Able to pump uphill up to a height of 150 feet
  • No tools are required for installation and use
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What is a Macerator Pump?

As mentioned above, the macerator pump is a piece of kit that will turn larger chunks of waste into smaller pieces or a slurry of waste. This slurry can then easily pass through your hose into the sewage system. A decent pump will provide your hose with enough pressure to travel uphill and eliminates the struggle of getting the waste out of your tanks.

Aspects to Consider When Buying an RV Macerator Pump

Every brand makes its macerators differently. There are also many factors you’ll need to consider when buying your pump. There are different benefits and downsides that come with every pump. The following list will be the different aspects to consider and what makes an excellent macerator pump.

Does it Pump Uphill?

Many features make a great pump and an uphill pump function is one of them. Picture the scene; you’ve parked up on the only available spot on the camping site, you need to empty your waste tanks, the only available sewage connection is uphill, but your pump can’t provide the pressure needed to carry out such a task. The same also applies if you need to empty the tank, but you’re not anywhere near a connection point, you can empty your tank into a secondary tank built into your RV.

Easily Installed

Some macerators will take a lot to hook up to your RV. These devices are electrically operated, therefore you’ll need to connect it to your battery via the RV’s circuit. You could also connect it to an external secondary battery that you can use whenever you are cleaning out the tanks. An extra battery would be the best option as you won’t be unloading the waste too much, it would save a lot of hassle.

Extra Features

Manufacturers have two options, provide a simple and basic macerator pump that has minimal features. Or, create a pump that not only does its job flawlessly and provides you with extra value features like a water cleanout system. This feature will allow you to connect a water hose to the pump and flush out the extra slurry liquid from your tanks, ultimately cleaning your tanks as well.

Quick Take - The Best RV Macerator Pumps

Review of the Best RV Macerator Pumps

Now that we've touched on the key aspects to consider before buying one of these pumps, let's check out the top ones of the year. 

Best Overall: 
SewerFlo Quick Release

Quick Release RV Macerator Pump - 12V, 12GPM


  • Portable
  • 9ft Uplift
  • Inlet Hose
  • Quick Release
  • Thermal Protection


  • Breaks Easily
  • Doesn’t Include Hose or Other Parts

This portable macerator pump is the best-rated product on Amazon. The inlet hose will allow you to clean out the full inside of your hose and tank, getting rid of most waste still in your tanks. The quick release also makes the cleaning process a little bit faster, ensuring any less technologically-savvy RV owners out there don’t struggle.

The same thermal protection included in other products is present in this and this protection is more than adequate in helping limit any damage caused by overheating by shutting itself off. This product can also pump waste up to 9 feet in height. The portability will also provide you with more flexibility in where you can empty your waste tanks.

Bottom Line

The different functions this macerator provides are what make it the best-rated pump on Amazon. The inlet hose allows you to flush out every last piece of debris inside your tanks and hose, giving your RV a thorough clean. The fact that the device is portable also means you have more flexibility in how you clean your tanks out. Protection against overheating is also included and is an essential aspect of keeping your macerator working for years on end.

The quick release allows you to limit the time spent on cleaning, as this function makes it easy to disconnect the device. The only downside to this product is that it can break easily with the materials used on the adapter. The other downside is that this product doesn’t come as part of a kit, meaning you’ll need to buy the hose and any other extra necessities yourself.

Clean Dump CDPU Permanently Installed Macerator System


  • Flows Uphill
  • Can Travel 150ft
  • Simple and Easy Design


  • The Design of the Adapter Could Improve

This permanent macerator pump brings a whole host of benefits. It is a reliable and well-designed device. The pump can reach distances of up to 150 feet, meaning you’ll be able to park wherever you want and still have the opportunity to use any sewage tanks within the camping site, giving you the flexibility you need.

The box comes with everything you need to set the product up with your RV. One added benefit of this macerator pump is that it can pump uphill as well, meaning no sewage tank is out of your reach. The simple tap design allows you to control the flow of your waste effectively.

Bottom Line

This pump is a simple, yet effective, product that doesn’t really possess any faults. It can effectively flow uphill with the help of the pump enhancing the pressure. The simple and straightforward design of the tap will ensure you can control the flow of your waste and the design also allows your pump travel up to 150 feet to any sewage spot you need.

Because it travels uphill, you could also connect this to a secondary waste tank when on the road and even to a bathroom toilet in your own home. But, the design also comes with a flaw, as the adapter isn’t as secure as we’d like.

Jabsco 18690-0000 Marine Run Dry Heavy Duty Macerator Waste Pump (115-Volt, Marine Model), Black


  • Run-Dry Feature
  • Faster at Emptying Waste
  • Made With Durable Materials
  • Grinds Waste to Small Particles
  • Releases 30 Gallons Every Three Minutes


  • Easily Overheats
  • Dry-Run Feature Doesn’t Work the Best

The 115V AC Macerator will provide you with effective waste management at a faster speed than any DC unit on the market. This heavy-duty macerator will grind down any waste down to a ⅛”. This particle size will be able to flow through the thinnest of hoses.

The pump can efficiently spew out 30 gallons of waste slurry in an incredible three minutes, meaning a fast and easy cleaning process. In only 15 minutes, this pump can release over 180 gallons of fluid. The run-dry feature means that once your tank has been emptied, it’ll shut off and will save your pump and waste system from being damaged. Durability and reliability shouldn’t be a concern with this product, thanks to the stainless steel motor and shaft.

Bottom Line

What makes 115V AC units so popular is that they work faster than any other type of macerator. The alternating current is far more efficient when running the pump, which means that the waste tank will be emptied at a faster rate. The run-dry feature is an added bonus that will automatically switch off when your tank is empty, meaning you can go about your business without having to wait and turn it off.

Durability is no concern with the help from the stainless steel materials. The only negatives that come with the product are that it can easily overheat because of the high-powered design, as well as the run-dry feature isn’t as effective as the manufacturers make it out to be.

Flojet 18555000A 18555-000A Portable RV Waste Pump


  • Water Inlet
  • Fast Disposal
  • On/Off Feature
  • Industrial Blades
  • Dry-Run Protection


  • Wires are Too Small
  • Some Parts Sold Separately

The best of its range, this macerator pump provides you with a seamless experience. The device includes an on/off switch that might seem like nothing. However, this simple function will save you time and effort when wanting to use the tool. Like the previous product, this pump has a dry-run protection feature that turns your pump off if your tank is dry for more than 30 seconds.

This saves your pump from burning out and causing damage to your entire system. The pump will give you some speedy results, as it can drain a 30-gallon tank within only three minutes. The industrial blades will cut down any waste to only ⅛" of the size it was before. This pump also has a water hose inlet that can rinse out any leftover debris and waste from your tanks and hose.

Bottom Line

Providing you with many features and functions, this device is the best of its range for this exact reason. The on/off feature is extremely convenient and easy to use. The dry-run function also adds to this, meaning that if you forget about your pump, it’ll stop when the tank runs out of fluid.

The disposal process is far faster with the industrial blades and water inlet by chopping it into ⅛” of the size and having the water flush feature that can clean the tank of any remaining slurry. The only downsides are that the hose parts are sold separately from the main pump. The wires are also small for a portable unit and might need some extra length.   

Clean Dump CDTO Twist-On Portable Macerator System


  • Portable
  • Plastic Tap
  • Full Kit Included
  • Can Work Up to 150 Feet


  • Included Hose is Too Small
  • The Plastic Material Isn’t Durable

A lot like our first product on the list, this device comes from the same brand. The only difference being that this macerator is portable. This pump comes with a full kit and is everything you need to start pumping out your waste tanks.

Working up to 150-feet, this pump will travel as long as you need it (within reason) to reach any sewage drain on the campsite. The durability of the shaft shouldn’t come into question because of the stainless steel materials used. The kit includes a ten-foot hose, alligator clips, adapters, and a 20-foot power cable. Using the tap would also help manually regulate the flow of the wastewater.

Bottom Line

This portable macerator is included with a full kit of materials and features that other brands wouldn’t bother to include. The pump itself can work up to 150 ft, depending on the environment and the flow of waste can also be regulated, thanks to the plastic tap. However, even though the distance capability of 150 ft seems impressive, it’s not what you get in the box.

The hose included will only reach ten feet away. The stainless steel effectively protects the shaft. However, the plastic material that’s widely used isn’t as durable as you’d require and won’t last long if abused.

Amarine-made 12V Quick Release RV Mount Macerator Waste Water Pump 45 LPM 12GPM Boat RV Marine


  • 12 GPM
  • 12ft Uplift
  • Thermal Protection
  • Portable and Flexible


  • Bare Minimum

One of the greatest value for the money macerators you can buy. When a macerator is continuously working for more than 15 minutes, it can overheat. The included thermal protection will ensure your device won’t overheat, a common problem when working out those large chunks.

The device will just shut off when it detects the device is overheating. The portable design ensures the flexibility needed to empty your tanks in a far away sewage tank. This product can supposedly pump to heights of up to 12 feet, which should suffice for most areas and situations. The pump can empty at up to 12 GPMs, meaning your tank will be emptied in no time.

Bottom Line

Providing you peace of mind with thermal protection, overheating is a common problem that only some devices can protect themselves against. The portable and flexible nature will allow you to use this pump on any RV and in any situation. The 12-foot uplift will also help in reaching those sewage tanks that are higher up.

Along with this, the 12 GPMs will also empty your tank in no time, whatsoever. The only downside to using this product is that the kit doesn’t come with all the extra parts and features other products do. You’d have to buy all of those parts separately. It might be budget-friendly, but it’s bare minimum.

Types of RV Macerator Pumps

There are various types of macerator pumps that bring a variety of benefits and options when flushing out your waste tanks. The following section will discuss in detail these types of macerator pumps.

  • Permanent Macerators

This variation of the macerator pump can be installed underneath your RV. This will be a permanent solution to emptying your waste tanks. These devices run on 12-volt direct currents. DC methods won’t work as fast as others that use the alternating current method.

  • Portable Macerators

A similarity between the portable and permanent pumps is that they both run on a 12V DC. These pumps have the benefit of being moved around a lot and are flexible in how they work. This option is one of the most popular. However, this includes the hassle of setting it up.

  • 110V Macerators

The most powerful macerator out-pumps the lot. This pump will provide you with an incredibly powerful device that’s able to flush out your waste far faster than the previous types. By using an alternating current, your device is much faster and more powerful. However, this power comes with a price. However, they’re expensive and could damage your RV system.

How Does a Macerator Pump Work?

  • When you macerate your waste, this means that you soften and break it down. This method is similar to a food disposal unit in your sink. By breaking down the waste, you’ll make it easier to get rid of.

  • When the waste enters the unit, it will be blended by a rotating blade that works at fast speed, the following is a step-by-step.

  • The tanks begin emptying through the macerator unit, which triggers the blades to begin rotating.

  • Macerating blades can work up to speeds of 3,600 RPM, which is why any waste can be turned into such a fine liquid.

  • When the liquid has been blended, the closed valves leading into the sewage system will then open up, at which point the unit pumps any blended material into the sewage drains.

How to Install a Macerator Pump

Installing your macerator pump might differ depending on the brand and type you go for. However, we will help you install your device with this step-by-step guide that should work for most, if not all, macerator pumps.

  1. Connect your adapter to the RV sewage outlet. This should look like any normal piece of piping that will connect to the macerator pump.

  2. Once you’ve placed the pump onto the adapter, you’ll need to ensure it’s fastened down. To connect your pump to the power supply, you’ll want to take the wiring that comes with the device and connect this to your RV’s power supply. Some RVs will have a power box in the same compartment as the sewage system for these exact reasons.

  3. These wires should come in two colors. The red wire that connects to the 12V fuse and the yellow wire connects to the ground.

  4. Now that you’ve connected one side, take the other side and connect this to the wires protruding from the macerator device.

  5. You’ll now want to start assembling the hose and getting ready for your first test run. If you have any hose clamps, you’ll need to put them on and ensure everything is sealed as tightly as possible.


Setting up your macerator pump can be a tricky task and so can be finding one to suit your needs. Hopefully, this guide has provided you with the valuable information you need to find the best macerator pump on the market. 

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