What is an RV Macerator Pump, and Do You Need One?

You may have heard about RV macerator pumps, but don’t know exactly what they are or if you even need one. We’re here to give you quick, simple answers to your questions about RV macerator pumps.

What Does an RV Macerator Pump Do?

The short, quick answer is, a macerator grinds up the poop and toilet paper and pumps it out of your black tank. Most of the time, using a macerator isn’t necessary. But, if you’ve ever experienced trying to dump your tanks uphill, You’ll appreciate what a macerator pump can do. It’s also useful if you need your sewer hose to go a long distance to dump.

Also, a macerator pump uses a thinner, hose, usually a typical garden hose. This means you can also dump your black tank into a home septic system or even a sewer clean-out. Some macerators can pump waste up to 100 feet away. They are also capable of pumping uphill, although for a shorter distance.

While a macerator grinds up poop and toilet paper for easier disposal, you’ll still need to be mindful of 1) the type of toilet paper you use and 2) the amount. The toilet paper will still need to make it out of the 3” sewer outlet, and into the macerator. If you are using large wads of toilet paper that do not dissolve quickly, it can clog both the sewer outlet and the macerator.

If you’re frequently in locations where you need to dump your tanks uphill, or a long distance away, you need a macerator pump. Macerators can be installed permanently, or you can get a portable one.

The Disadvantages of RV Macerator Pumps

Since the outlet hose on a macerator pump is much smaller than a 3” diameter RV sewer hose, your tanks may not completely empty. Also, you need power to operate a macerator pump, so you’ll need to choose wisely. Finally, you’ll need to find storage space for it, or, find a good place to install a macerator permanently.

12v DC RV Macerator Pumps

A macerator pump that runs on 12v DC power is the most versatile type for an RV since you won’t need to be plugged into shore power. These can be powered through a cigarette lighter plug and a portable power pack if needed. You can find the following 12v macerator pumps on Amazon.

Sprance 12V 12GMP RV Macerator Pump with Garden Hose Outlet

RV macerator

This is an economical option that can be permanently mounted or used as a portable macerator. It comes with battery jumper cables and a cigarette lighter plug, which you’ll need to attach yourself.

Amazon users report that the Sprance can pump waste up to 100 feet on level ground. The company states that the unit can pump uphill for 10 feet. You can also attach a garden hose to flush the unit out.

Buy it on Amazon

Latch.It 12v RV Macerator Pump


The nice thing about this unit is that it comes with a nice storage case. Like the Sprance, the Latch. It can be permanently mounted or used as a portable model. It also comes with a lifetime warranty and all of the attachments you need. Also, it can be flushed out with fresh water.

The company states that this unit can pump up to 25 feet with a 5/8” diameter hose, or 50 feet with a 3/4” hose. However, users report pumping up to 100 feet on level ground.

Buy it on Amazon

Flojet Portable RV 12v Macerator Pump

macerator pump

This unit is more expensive, but Flojet is a well-known name in RV pumps. It can be wired into your RV or you can also use the battery clamps. It also comes with a carrying case.

Amazon users report pumping up to 150 feet up a slight incline using a 1/2” hose. Users also report that this unit is a real workhorse.
Buy it on Amazon

Folconroad 12v RV Macerator Pump

cheap macerator pump

This is one of the cheapest macerators on Amazon, but it gets decent reviews from users. However, one reviewer stated it was wired backward.

It comes with all of the attachments you’ll need to get started, including a freshwater flush. The company also offers a 3-year warranty. However, the hose threads are plastic, not metal. No mention of how far it will pump. But, if you have less than $100 to spend, this might be a good choice.

Buy it on Amazon

Comments are closed.