Best RV Water Softeners of 2020 – Complete Review

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Hard water is a problem many RV owners face regularly. Hard water is just a term given to water that contains a high level of minerals.

Minerals like magnesium and calcium which if not treated can leave you with a whole host of problems, the most extreme being damaging your entire plumbing system.

As you can tell, it’s essential to get this sorted as soon as possible. The following review will explain in details the various water softeners on the market that will fix this problem.

Comparison Chart of the Best RV Water Softeners


Mobile-Soft-Water Portable 16,000 Grain (TM) Unit with Tank

  • Able to treat up to 5 gallons of water per minute, this unit is the best overall and best water softener for RV tanks
  • Eliminates lead, magnesium, soluble iron, and other heavy metals found in water
  • The unit does not require any electricity to regenerate
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Watts Water M7002 Flow-Pur RV-Pro 10,000 Water Softener

  • Drain line flow-restrictor increases the capacity of the water softener by up to 55%
  • Custom designed flow valves can be used to regenerate without disconnecting and connecting the system
  • The unit is designed with a full cradle base, keeping the tank more secure than open base tanks
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On The Go OTG3NTP3M Portable Water Softener

  • Can be regenerated in under fifteen minutes with a box of common salt
  • Capable of supplying soft water for around 7 to 14 days
  • The unit is compact and lightweight, making it portable and easy to store
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On The Go OTG4-DBLSOFT-Portable RV Water Softener

  • Able to produce twice the gallons of other standard models, this model is the best portable water softener for RV
  • Regeneration is completed within 30 minutes, providing you with up to 1600 gallons of water
  • The unit uses a standard garden hose connection and does not require any electricity or tools
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Travelsoft HD Portable Water Softener & Conditioner

  • The in-line water conditioner and softener makes this model the best Travelsoft RV water softener
  • Built-in drain and bypass ensures easy winterization
  • Can be installed anywhere due to its compact design
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​​ FlowPur M7002 RV Pro 10,000 Portable Water Softener

  • With a flow rate of up to 4 GPM, the FlowPur is the best RV Pro 10000 water softener
  • Regeneration is completed within 20 minutes with 2 lbs of table salt or potassium chloride
  • The model comes with a hose fitting and hardness strips
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Aspects to Consider Before Buying an RV Water Softener

You’ve identified the problem, you know that a water softener will solve it, but you still have to decide which one to get. Multiple brands claim to have the best on the market. This bombardment of information can confuse anyone. However, we’ve put together a list of the various considerations you need to take into account before making that purchase.

  • Types of Softeners

One of the first considerations should be what type is going to be more beneficial for you. These machines come in various types. These include the salt-based water softener. This version contains two tanks, one tank includes resin beads and the other holds brine. This works by replacing the hard minerals with salt. The salt-free type, substitutes salt for potassium-chloride, this is mainly for those that don’t want to consume too much salt.

  • Size

The size of your softener is also essential. You want to find a device that will be able to last long enough that you’re not constantly changing it, but not too big that its more of a liability than an asset. We recommend that you find a device that can last around three or four days without needing recharging.

  • Water Hardness Level

You must consider how bad your problem is. Water hardness can be measured and depending on the level also depends on what softener you’ll require. The average US water hardness level sits around 20 - 30 GPM. If you have a high water hardness, you’ll need an efficient device to combat this.

  • Maintenance

Taking care of your water softener should also be a consideration. You don’t want to be taking care of a component of the RV regularly, to the point you feel like babysitting. Of course, different parts of your product will need to be cleaned or refilled, researching to find what product is the most autonomous will save you a lot of labor and money in the long-run.

Review of the Best RV Water Softeners

This is the most critical part of this article. The following section will go more in-depth on what we think are some of the best RV water softeners on the market.

Best Overall & Best Water Softener for RV Tanks: 
Mobile-Soft-Water Portable 16,000 Grain (TM) Unit with Tank

Mobile-Soft-Water Portable 16,000 Grain (tm) Unit with Tank, Tank Head, Lead Free NSF 61 Male GHC Tank Connections, Distributor, Resin and Instructions. Used in Rv & Car Wash Applications.


  • Portable and Compact
  • Five Gallons per Minute
  • Doesn’t Need Electricity
  • 16,000 Gallons per Grain
  • Useful in Treating Minerals and Other Materials


  • Some Parts of the Product are Made from Cheap Plastic

This water softener in our opinion is the best currently on the market. The 16,000 gallons per grain device will be able to turn hard water into soft water for a full family without needing to be regenerated for a few days. The tank can treat up to five gallons per minute.

The device is compact and portable making it more than suitable for anyone that can’t sacrifice more space. The product doesn’t require electricity to work and will effectively stop any hard mineral and other materials such as radium lead from your water, ensuring your body is healthy.

Bottom Line

This product is by far the best on the market at the moment. The portable and compact design will allow for your softener to be placed snugly within your RV without causing hassle. This design also allows for your product to treat up to five gallons per minute ensuring effective treatment of hard minerals and other materials which in turn will keep your body safe and healthy.

The best part about this device is that it doesn’t require electricity to operate. The downside to the softener is that some parts are made from cheaper plastic that, in time, could get damaged and affect the overall performance of the device.

Watts Water Quality/Condition M7002 Flow-Pur RV-Pro 10,000 Water Softener


  • Custom Flow Valve
  • Digital Control Panel
  • Capacity Increases by 55%
  • Simple and Fast Regeneration
  • Absorbs Both Minerals and Heavy Metals


  • Takes a While to get the Hang of

This product is renowned for being extremely lightweight and compact, perfect to fit in any small compartment, making it even more straightforward for installation. It has an impressive 10,000-grain capacity, the impressive flow-valve will allow you to regenerate your device by just adding table salt and won’t require you to disconnect it. A straightforward and smooth device that maximizes productivity. This device can also absorb heavy metal as well as minerals.

Thanks to these features the capacity increases by 55 percent. The added stainless steel and brass fittings ensure that your device is durable and reliable in any situation, no cheap materials were used on this softener. The device also retains decent water pressure with up to 4 GPM. The digital control panel will allow you to customize multiple settings on the device.

Bottom Line

There are many functions that stand out to be unique to this product. The first being the custom flow valve that allows you to regenerate the device without disconnecting it, this valve helps increase the capacity by 55%. This makes this process fast, simple and more efficient for any RV owner.

The digital control panel also tries to make the whole process more streamlined as you’re able to customize multiple functions. A great addition is the strength of the resin beads, these beads not only absorb minerals but heavy metals too. The only problem people face with this softener is that although there are plenty of functions to help streamline the experience. It can take quite a while to get used too.

On The Go OTG3NTP3M Portable Water Softener


  • Fast Recharge
  • Extremely Compact
  • Can Last up to Two Weeks
  • Treats Around 700 Gallons


  • Some Materials are Made from Plastic
  • Not Made for Large Families over a More Extended Period

This product is so efficient, it will provide you with soft water between one to two weeks before regenerating. The six-inch tank keeps the weight at a feathery weight of around 18 lbs keeps this product the true compact and portable water softener. This product really can fit in the tightest of spaces.

It can treat up to 700 gallons of water before it needs to recharge which usually only takes 15-20 minutes and requires a small amount of salt, thanks to the compact design. The device comes with helpful hardness strips that allow you to keep track of the hardness level of your water. This added piece of mind is an excellent feature for RV owners.

Bottom Line

The critical part of owning an RV is that you want to save as much space as possible. You’ll not have any problem finding a home for this softener thanks to the extra light 6-inch tank used. This softener can be used for around two weeks and treats approximately 700 gallons of hard water with every recharge. Speaking of recharging, this process has been made simple and fast with it only taking 15 minutes and a small amount of salt. A true master of portability and efficiency.

The only apparent downsides to this product are that some parts are made from plastic which can deteriorate over time. This product can’t be used for larger family RV trips without constant recharging. You’d be best using a larger softener.

Best Portable Water Softener for RV:
On The Go OTG4-DBLSOFT-Portable RV Water Softener

On The Go OTG4-DBLSOFT-Portable 16,000 Grain RV Water Softener


  • Compact
  • Fast Recharge
  • 40% more Water
  • 1600 Gallons or 40 Days of Constant Use


  • Small Leaks Around the Edges

This is the larger model of the previous product. It has a 16,000-grain capacity which is double the previous version. This model can provide a 40% increase in softened water than others in its range while still retaining a portable design fit for most RVs.

Because of the larger capacity, it takes double the time to recharge, but this is still only half an hour and consumes two boxes of salt. Far better than competitors. This product can treat up to 1,600 gallons of clean water which should last around 40 days, ensuring you have soft water for even the most extended adventures.

Bottom Line

The compact design of this model allows for it to fit inside any RV. The best of its range thanks to the 16,000-grain capacity and an increase of over 40% more water than any other water softener within its range.

The fast recharge of only 30 minutes means you can quickly make dinner and then it should be operational again. This product can treat 1600 gallons of water, which should last roughly 40 days for every recharge. The only downside to this product is that although they do claim to be leak free, this isn’t the case as there are small leaks every now and then.

Best Travelsoft RV Water Softener:
Travelsoft HD Portable Water Softener & Conditioner


  • No Electricity
  • Fiberglass Material
  • 10,000-Grain Capacity
  • Anti-Freeze Technology
  • 2,000 Gallons for Every Recharge


  • Large Tank
  • Requires Regular Maintenance

This water softener has a capacity of 10,000 grains and can treat up to 2,000 gallons of water for every recharge. An impressive amount for any RV water softener. At 25 inches tall this device is quite large. It will be able to work in the largest of RV’s for those extended adventures across the country.

Made from durable and sturdy fiberglass, this product won’t have any problem being thrown about or battered off pipes. This product requires no electricity and offers a simple control valve to connect or disconnect the water source. The device also helps combat the freezing cold with its built-in bypass. This water softener also uses 6 pounds of salt each recharge.

Bottom Line

This water softener is an impressive beast. Treating 2,000 gallons for every recharge is an incredible amount of water built for larger families on long trips. The 10,000-grain capacity requires no electricity.

Additional features such as the anti-freeze technology and fiberglass materials are crucial in making this product stand out as unique. The only downsides to this product are that the tank is excessively big and you might struggle to find a space for it in a smaller RV. The product also requires regular check up’s and maintenance.

Best RV Pro 10,000 Water Softener:
​ FlowPur M7002 RV Pro 10,000 Portable Water Softener


  • 4GPM
  • Can Fit in Most RV’s
  • 10,000-Grain Capacity
  • 20 Minute Regeneration


  • Uses Plastic on Some Parts

This compact water softener is perfect for your RV. The flow rate of this device can reach 4GPM which is excellent for any RV owner. The low grain capacity will be ideal for a family of three that will be using things like showering regularly. It will use any salt and takes up to 20 minutes just to regenerate which is better than most water softeners out there.

You should also remember that this water softener has a 10,000-grain capacity. The flow valves are also customizable, meaning you can find the best settings for your RV. The resin is also of premium quality meaning that it will filter out minerals and heavy metals to an incredible standard. The product weighs 26 pounds so should be decent for any RV.

Bottom Line

This is the best water softener that has a capacity of 10,000. The product only takes a small 20 minute period to recharge which will still provide exceptional results. The product is quite easy to fit into an RV. It weighs roughly 26 pounds, so it's not that bad in that area. It has a decent 4GPM. The only real downside is that some of the parts are made from plastic which means they’re easier to deteriorate.

Portable Water Softener 16,000 Grain Capacity, Perfect for Your Rv, Boat or Car Washing.


  • 16,000-Grain Capacity
  • Compact and Durable
  • Operates Using Table Salt
  • Portable, Comfortable Handle
  • Treats up to 2000 Gallons per Regeneration


  • Customer Service isn’t Great
  • The Product can be Challenging to set up Without a Manual

This reliable water softener is a great addition for any RV. This model will allow you to regenerate as fast as possible as it requires only table salt to operate. The product will enable you to treat up to 2000 gallons of hard water for every time you regenerate, meaning that it might take up to a week for an average family to use.

This model is an efficient kit in comparison to others currently on the market. Just like our previous product, this device has a 16,000-grain capacity while also being easy to store away with thanks to its portable and compact design, carrying this product around is also easy as it has a handle ensuring its secure at all times.

Bottom Line

Having a compact and portable design allows any RV owner the piece of mind that they’ll have no problem fitting this device in their RV. The handle on the product makes it easy to move around if need be. The actual effectiveness of the device is excellent, it can treat up to 2000 gallons for every time it’s regenerated, with a 16,000-grain capacity it can fully operate using table salt.

The only downsides to using this softener are that if you need help setting it up or have any questions the customer service team isn't great. Most of the time they won’t answer your emails or calls which can be frustrating. Another downside is that sometimes the manual isn’t included which is just human error but can be challenging to set up your softener if you don’t have it because they can be quite technical.

How Do I Choose a Water Softener?

Different brands of water softeners will provide various features that will try to attract customers. You’ll want to know what features make up an excellent water softener. The following section will provide an insight into what features you should keep an eye out for.

  • Timed Control System

Some softeners can be operated manually which means you’ll need to spend some time every week recharging the device. Others have an automatic renewal system built-in. The meter-based system will automatically regenerate your device, this can really save on time and effort each week. If you can, you should buy these versions.

  • Flow Rate

The flow rate is an important feature. If your softener can produce soft water at a high rate without sacrificing too much space, you’ve got a good product. The speed is measured in grains per gallon, the flow rate will vary depending on the model. The larger the capacity, the more soft water it will produce. You should measure how much water you use every week and purchase your softener depending on that, to keep the efficiency of the device at optimum levels.

  • Resin

There are various degrees of resin that are used for different brands. You should ensure that you only purchase softeners with high-quality resin. If you don’t buy anything from our list. You should always keep this in mind.


Always try and follow the list we have provided. If you follow our advice on the different products, features, and considerations, you’re on your way to owning one of the best water softeners on the market. If you don’t purchase a product from our list, please ensure you follow our advice on what makes the best product for your RV. If you listen to what we have said, you’ll do just fine.

People Also Ask

This section is to help anyone that needs additional information or details on areas we only briefly mentioned. We have compiled some of the most asked questions and answered them as best we could. We hope this helps.

  • How to Regenerate RV Water Softener?

Some water softeners can automatically regenerate, others are manual and need to be done by yourself every few days. The way you regenerate is by just flicking a switch. The water will be taken from the water supply its hooked up to, if you have an automatic device it will monitor its own levels and regenerate accordingly.

  • Is it Safe to Drink Water From a Water Softener?

Drinking softened water has been a confusing topic over the years. Drinking it would add more sodium to your body. Humans mainly get their daily fix of sodium from their food. The daily allowance for sodium is 2,400 mg, drinking two quarts of softened water would add up to 240 mg to your diet.

Water softeners do not remove contaminants such as organic matter, most people would use a drinking water system to ensure the safety of the water. So yes, you can drink it. However, use a drinking water system to clear out other contaminants.

  • What is Water Softener and How Does it Work?

A water softener will clean out any hard minerals that are in your water, creating soft water. Hard water affects 90% of the US. Water softeners work by having two tanks, one with brine and the other filled with resin beads. Hard water is transported into the device, they move into the beads, replacing the sodium, while the sodium moves and creates the soft water.

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