Best RV Macerator Pumps 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

IMAGEPRODUCT
  • 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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  • With an open flow of 12GPM, this unit is the best budget pick
  • Thermally-protected motor automatically shuts off if it starts to overheat
  • Able to pump to heights of up to 12 ft.
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  • Best Shurflo RV Macerator Pump
  • Premium design with run-dry function
  • Dual-blades and housing construction made for performance
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  • Built-in anti-clogging features
  • Quad-blade design optimized for high-performance
  • Rated to pump 30 gallons in less than 3 minutes
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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.

SewerFlo Quick Release

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.

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

SewerFlo Quick Release RV Macerator Pump - 12V, 12GPM

Pros

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

Cons

  • 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

Pros

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

Cons

  • 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

Pros

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

Cons

  • 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 18555-000A Portable RV Waste Pump with Garden Hose Discharge Port - 12 VDC Motor

Pros

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

Cons

  • 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

Pros

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

Cons

  • 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.

Pros

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

Cons

  • 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.

Best Shurflo RV Macerator Pump:
Shurflo 3200-001 12V

SHURFLO (3200-001 12V Macerator Pump

Pros

  • O-ring sealed to reduce odors 
  • Has a maximum flow rate of 13 GPM 
  • Backed by a one-year limited warranty
  • Features premium impeller design and a run-dry capability
  • Durable housing construction and unique dual blade provides superior performance

Cons

  • Durability could be improved
  • Some components wear down more quickly than others

What Recent Buyers Report

Most people who purchased this unit loved it and stated that it performed as advertised. They found installation to be a breeze, with users saying that they experienced no problems connecting it to the existing wiring. However, some buyers were disappointed with its durability and reported that the unit broke after a few months of use. 

Why it Stands Out to Us

This unit primarily stands out to us because of its dual-blade design. This feature means that you won't face any problems with the pumping, and won't have to worry about the unit being blocked or backed up with waste. Along with being able to quickly reduce solid and liquid waste for faster dumping, this model can run dry without damaging the motor.

Bottom Line

One of the fastest and most efficient pumps available today, the Shurflo certainly deserves a place on our list of top picks. Boasting a maximum flow rate of 13 GPM, it enables users to empty their water tanks quickly and easily. However, the unit might have to be replaced annually.

SEAFLO Macerator Waste Water Pump 12V New Anti-Clog Feature for RV Marine Trailer Toilet Sewer Self Priming

Pros

  • Comes with a four-year warranty 
  • Can empty 30 gallon holding tanks within three minutes
  • Quad-blade chopping design ensures fast and efficient pumping
  • Anti-clogging feature dislodges clogs without disconnecting hoses
  • Tough, durable powder coating and sealed bearings prevent corrosion

Cons

  • Has problems pumping uphill 
  • Quality control could be improved

What Recent Buyers Report

The majority of the buyers who invested in this product were satisfied with it and said that it worked great. Users stated that it ran quiet, cool, and strong, and did not clog or cause any trouble. However, some customers complained that it had zero lift, and would not prime after being installed three inches over the static waterline. 

Why it Stands Out to Us

This product stands out from its competition because of its numerous exciting features. It boasts a triple-sealed motor that protects the unit from external and internal damage, while its quad-blade chopping design reduces clogs and ensures an incredibly fast dumping process. It also features an easy clog removal function, which makes the pump extremely easy to use.

Bottom Line

All in all, this model has amazing features, including an exceptional anti-clog function. While it's able to macerate and turn liquid and solid waste into a slurry, its inability to pump uphill can be disappointing for some.

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.

RV Pump Basin vs. Macerator Pump - Comparison Overview

With so many different types of pumps available today, it's important that you understand their differences before making your decision. To ensure you choose a unit that best suits your pumping needs, we've compared some of the most common types:

RV Pump Basin vs. Macerator Pump

An RV pump basin is similar to a sewage pump as both are designed to pump waste solids. However, pump basins usually handle solids that measure 3/4" or less in diameter and drain greywater, which is neither sewage water nor clean water.

On the other hand, macerator pumps are similar to garbage disposal units and can pump waste solids measuring up to two inches in diameter. These motorized grinders turn black tank liquids and solids into a slurry and then drain it longer distances with a small sewer hose. And since macerators feature an electric pump, they're able to move waste uphill as well.

Sewage Grinder Pump vs. Macerator Pump

A sewage grinder pump is designed with cutting blades for grinding raw sewage and waste into a slurry and passing it through a discharge line. These units can handle the same kind of materials as sewage ejector pumps but are able to pump tougher solids as well. 

Most macerators cannot run dry and need to have liquid constantly flowing through the pipe. They work better with small solids, such as wipes, plastics, hair, and rags, as compared to larger, heavier solids. Although macerators are unable to grind hard solids like metal and rocks, some models are designed with heavy debris removal traps.

Ejector Pump vs. RV Macerator Pump

Instead of grinding blades, ejector pumps are designed with impellers that spin raw sewage from the base of the pump, forcing it out of the outlet and passing it through the discharge pipe. These units are typically designed to pump solids measuring up to two inches in diameter.

Macerator pump in an RV  (Source)

Whereas, RV macerator pumps connect to a waste outlet and grind up the waste. The waste is then pushed through a hose into a proper waste-containing zone, enabling users to quickly dump their waste into a sewer opening, a holding tank, or a private septic system.

What Size of Macerator Pump Do I Need? Are They Universal?

Macerator pumps are universal and don't come in specific sizes. If your RV doesn't feature a built-in macerator or doesn't have a designated place for proper macerator pump installation, then you can use a portable model. 

Portable units don't require any additional installation and are suitable for all RVs. You just need to pick it up, connect it to a waste outlet, and let it work. 

However, you'll need a clear elbow or a connector to connect the pump to the tank. Make sure you check whether the elbow is compatible with the pump and the RV before making your purchase.

How to Clean a Macerator Pump

It's essential that you clean your RV's macerator pump at least once a year to avoid blockages. These units don't require constant upkeep, and the cleaning process isn't extensive as well. Here are the steps you can follow if you want to clean a macerator pump:

  1. Turn off the electricity access and water supply of the pump. 

  2. Make sure the holding tank is empty and does not have any waste inside it.

  3. Unscrew the macerator pump and then disconnect the hose from the pipe. 

  4. Use a wrench to remove the seal connecting the pump's tube and the holding tank pipe. 

  5. Fill a bucket with soapy water and soak the pump's tube in it for a few hours. 

  6. Pump running water through the tube to clean it entirely. 

  7. Remove the blades from the pump and use a damp dishrag or towel to wipe off the residue.

  8. Clean off any debris or residue left and place the pump back in its proper location.

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.

Conclusion

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. 

People Also Ask

Choosing the best macerator pump for your RV can be a difficult and time-consuming task. To ensure you don't end up wasting your money and to clear away any queries you may have, the following are some of the most frequently asked questions:

What Are the Advantages of a Macerator Pump in an RV?

Dumping and handling waste from your RV is a messy and smelly job, especially if you're using the three-inch sewer hose. A macerator pump helps make this task easier. Since the pump uses a smaller diameter hose, there's less smell in the air around the RV when waste is being disposed of.

Can You Put Toilet Paper in an RV Macerator?

Using toilet paper can cause issues in an RV's black tank or septic system. If you're using a macerator, then it's advisable to use a paper that dissolves easily and quickly moves along. Make sure you avoid any paper residue on the sensors or in the tank.

How Expensive Are Macerator Pumps?

Quality macerator pumps usually cost around $200 to $300. Although models cheaper than this are available, they're often less durable, so you'll be forced to buy another pump in a few years.

How Often Should a Macerator Pump be Cleaned?

It's advisable to clean your RV's macerator pump at least once every year. This will allows you to monitor the condition of the unit and clear away any blockages.

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