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How to Choose the Best RV Water Filter System

How to Choose the Best RV Water Filter System

When you’re on the road, you have almost no way of knowing what is in the water where you’re staying. While it may be alright in some places, it isn’t worth the risk. After all, bad water can lead to serious health consequences. Luckily, you can get clean, good tasting water anywhere with a great RV water filter system. 

Why Is Filtering Your RV Water Important?

Filtering your RV water is an important step for every RVer to take. Here’s why:

Municipal supplies are generally safe however, this is not always the case. Even in the US, there are places with high levels of lead, arsenic, or chemicals in the city water or well water at the RV park. Some municipal water systems also treat drinking water with harsh chemicals like chlorine. By using a water filter system in your RV, you maintain complete control over what you are putting into your body. 

RV Freshwater Tanks: If the water in your RV freshwater tanks comes from a municipal supply, the above holds true. If you fill up at your own place and know what is in the water, there are still reasons to filter water.

You can have a build-up of bacteria and even algae in your freshwater tanks. RV water tanks should be sanitized regularly, but it’s equally important to use an RV water filter system to ensure clean water is coming into the tank in the first place. 

Pro Tip: Learn all about How Does A RV Water System Work?

What Water Do You Filter? 

There are a couple options for filtering your RV water. You can filter all the water coming into your RV or you can filter only your drinking water. It depends on your preferences and needs.  

Types of RV Water Filter Systems


External RV water filter systems filter all the water going from the source into your RV. This includes drinking water, shower, bathroom tap, toilet, etc. If the water you’re getting from the campground is dirty, you’ll want to filter all of it. 


This in-line RV water filter is one of the simplest ways to filter your water. All you have to do is attach it to your external hose, and it filters your water. This filter improves taste while also filtering out bacteria 20 microns in size or larger and chlorine. 

Camco TastePURE Camper/RV Water Filter & Hose...
  • Safe Water Matters: GAC (Granular Activated Carbon) filtration...
  • Multiple Uses: Can be attached to any standard gardening or water...
  • 20-Micron Sediment Filter: Removes particles greater than 20...

Canister Systems 

A canister system is a slightly more involved way to filter all the water coming into the RV but provides some additional advantages compared to the typical in-line filter.

This two-canister system improves taste, filters out sediment, as well as some lead and chemicals, including chlorine, and reduces or eliminates bacteria. It is also simple to install because all you need to do is hook it up to your external hose. Compared to the in-line filter system that filters down to 20 microns, these systems can filter down to much finer sizes.

We personally use the RV Water Filter Store system below, which filters down to .5 microns.

Essential RV Water Filter System with Hose...
  • HIGH WATER FLOW RATES - allow for 3-4 Gallons Per Minute at 60...
  • 0.5 MICRON HIGH QUALITY FILTRATION - from our 0.5 micron coconut...


Internal water filtration systems provide you with filtered water for a specific area, such as only the kitchen sink. 

Under-Sink with a Special Faucet

There are many options for under-the-sink water filters. You will have to install a special faucet to go with the filter. If you only want to filter your drinking water though, this is a great option for RVs. The major benefit is that they save space by having the filtration system under the sink rather than taking up precious counter or fridge space. 

We use the RV Water Filter Store Ultra Pure Premium Under Sink drinking water system.


Another option for RV water filtration is to use a gravity filtration system like the Berkey Filter or a Brita filter. All you have to do is pour water in the top and gravity does the rest of the work. However, these filters should only be used on an already potable water source.

Travel Berkey Gravity-Fed Water Filter with 2...
  • POTABLE WATER IN THE GREAT OUTDOORS- Black Berkey Elements remove...
  • ECONOMICAL, LONG-LASTING- Black Berkey Elements average just...

The Travel Berkey filter is great for an RV because of its small size. It can hold 1.5 gallons at a time. But if you go through that quickly, all you have to do is refill it. Another perk for RVers is that it requires no power and no installation, so it is ready to go whenever and wherever you are. 

Pro Tip: Before you drop a pretty penny, find out Are Berkey Water Filter Systems Worth It?

RV Water Purification Filter

UV Light Treatment

Another option for purifying your water is using UV light treatment. This method of purification is the most effective option for killing bacteria and viruses. As the name suggests it uses UV light to kill organisms in your water.

It also has the added benefit of not using any chemicals so your water is safer and better tasting. Used alone, however, it won’t filter out sediment or large particles so it may need to be combined with another filtration method. 

Acuva RV water filter system

Acuva Eco NX-Silver

The best UV light treatment option for an RV is the Acuva Eco NX-Silver. The Acuva Eco System provides superior filtration by eliminating 99.9999% of bacteria, viruses, and cysts. It delivers 0.3 gallons per minute of filtered water so you never have to worry about running out or refilling your filtered water. 

The Acuva comes with a smart faucet, and the filtration system is installed under the RV kitchen sink so you don’t take up extra space in your rig. This system is designed to only filter your drinking water, but you can use it in combination with in-line RV water filters to get clean water throughout your rig. 

Get $100 off your Acuva Eco NX-Silver purchase with discount code “MORTONS”.

We use the Acuva system under our RV kitchen sink along with an under sink canister and external canister filtration system.

RV Water Filter Maintenance

Water filter maintenance is a simple process. All you have to do is replace the filter as often as recommended. This will vary depending on the system you choose. Installing and maintaining an RV water filter system is simple and painless. You really can’t go wrong with adding this safety feature to your rig. 

While there are many options for RV water filtration, they all have one thing in common: they keep you safer when you’re traveling. RV water filtration is a simple and cost-effective way to get cleaner, better-tasting water. The system you choose will depend on your travel habits and filtration needs. But any of the options above provide a great way to get cleaner water wherever the road may take you.

RV Faucets and Filters That Will Effortlessly Save & Purify Water - RV Touch Faucet

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About Mortons on the Move

Tom & Caitlin Morton of Mortons on the Move gave up the stationary life for one where they are constantly on the move. They are full-time travelers, television hosts, and digital media producers.
They left their jobs, sold their house and possessions, and hit the road in September 2015 in their full-time “home on wheels”. Since then they have traveled the US, Canada, and even internationally by RV.
Now, they are Discovery Channel & PBS TV Co-stars of The RVers, producers of “Go North” on Amazon Prime, co-founders and instructors of RV Masterclass, and contributing authors for and an Arizona travel guide.

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John Fleming

Monday 7th of December 2020

Your water filter link ( "We use the RV Water Filter Store Ultra Pure Premium Under Sink drinking water system.") does not link to a specific filter identified. It links to a web page having several filter systems. Which one were you referring to ?

Mortons on the Move

Tuesday 8th of December 2020

Great question, John! To be more specific, we use the "Essential System." Hope that helps clarify!

Not So Free

Monday 7th of December 2020

Interesting article. I'll save it. At the present time all of our trip are short. We carry ~10 gallons of water in portable jugs for drinking and cooking. That water comes from our well and is run through our Big Berkey.

Mortons on the Move

Monday 7th of December 2020

Thanks! For short trips, carrying water from home is definitely a cost-effective option. :)

Roger B

Monday 7th of December 2020

We RV travel with our Berkey.

Mortons on the Move

Monday 7th of December 2020

That's great! The Berkey seems to be a popular choice.