10 Best Portable Water Softener [2021 Reviews]

Water is normally pumped from different sources all of which are not safe for direct human consumption. The water usually contains some sort of hardness that can lead to accumulation of mineral deposits which will end up damaging your plumbing system, will stain your toilets and bathroom floor. This can be dealt with by regular cleaning and maintenance. However, that will not be the same case if you have a mobile home or when you are out camping for a few days.

If you love camping or you are an RV traveler, it is important to invest in the best portable water softener available on the market. Although choosing a good portable water softener is a tough process, you won’t have to go through the hassle. Below, I will review 10 portable water softeners that standout on the market today. I will also throw in a buyer’s guide to help you select the right one for your needs.

Best Portable Water Softener Comparison Chart

Product NameBrandWeightDimensionsPrice
On The Go OTG4-DBLSOFT-PortableOn the go32 pounds23.4x 11x 10.8 inches
Mobile-Soft-Water Portable 16,000 Grain (tm) Unit with TankMobile-soft-water33 pounds9.2x 21.6x 9.2 inches
Watts Water Quality/Condition M7002 Flow-Pur RV-Pro 10,000 Water SoftenerWatts water technologies9 pounds22x 10x 10 inches
CR Spotless DI-120 Simplest RV & Car Wash SystemCR spotless27 pounds14x 28x 14 inches
Camco EVO Premium RV & Marine Water FilterCamco3.73 pounds13x 6x 6 inches
Clearsource Premium RV Water Filter SystemClearsource17 pounds10”h x 2.5 diameter
On The Go OTG4-StdSoft-Portable 8,000 Grain RV Water SoftenerOn the go18 pounds22”h x 6.7 diameter
Shower Filter Water SoftenerBonyTec1.3 pounds3.5x 7.8x 3.5 inches
On The Go OTG3NTP1DS Double STD Water SoftenerOn the go32 pounds10x 32x 24 inches
ABCwaters Built Portable Water SoftenerABCwaters35 pounds8” diameter 18”h

The market is flooded with many products and it can be tough to get the right one if you don’t have the right information. Here are reviews of quality portable water softeners that you can trust on the market today.

Whichever RV or marine model you own, this unit was specially designed for all. It is designed with an integrated handle to make it easy for you to carry the unit. Its mouth is wide enough and it’s at the top for quick access when recharging the softener tablets. You don’t have to worry about installations. This water softener comes equipped with a hose connector that you can turn up to 360 degrees giving you convenience of use and quick installations. To add on that, you won’t need any tools to connect this model to your RV as it comes with an adapter that will connect to your RV water connector.

What I like

I liked the capacity of this model and the fact that it is not large but rather small to fit in you RV. It performs more than what you will get from other standard portable water softeners. On top of that, I like how it can soften and also condition water leaving it fresh for up to 40 days. This means that you don’t have to use it frequently. You will not hassle to have it installed and connecting to the vehicle will not require any special tools.

What I don’t like

The only downside I saw on this model was the minor leaks at the fittings. This however is not a major issue you can deal with it by properly and carefully attaching the hose tightly.

  • Softens up to 1600 gallons of water
  • Ideal for any type of RV or marine
  • It will supply 40% more softened water than standard models
  • It has a user friendly design
  • Wide mouth for quick access
  • Tends to leak at the fittings

If you are looking for a portable water softener that is among the top rated on the market, then mobile-soft-water portable might be what you need. This unit is made with recreational vehicle as well as car wash tasks in mind. It comes with 16000 grain capacity meaning it can remove hardness in both well and municipal water. The unit can remove radium, magnesium, lead, soluble iron as well as other heavy metals that can be found in the water.

What I like

This unit conditions and softens water to leave it safe for human consumption. You can get to regenerate it without using electricity. This device is mobile and portable ideal for vehicle use and car wash applications. I also liked the flow rate of 5 gallons per minute at every 10 grain of water hardness.

What I don’t like

It is a great portable water softener but it doesn’t come with a hose connector. This means you will have to spend extra to get it since its very important when it comes to installations.

  • It will remove heavy metals and other water impurities
  • It is portable and won’t take up much space
  • Made of durable materials
  • 5 GPM flow rate
  • Can be regenerated without electricity
  • No hose connector included

If you are looking for a user friendly RV softener on the market, then watts water quality/condition softener is what you need. It comes with a compact and portable design which will fit in your vehicle without taking up much space. It will be your best travelling companion as it will keep all of your RV appliances safe from damage by hard water. It will also prevent the hard water from staining your toilet and bathroom. This unit will remove all trace amounts of iron, calcium, magnesium and other heavy metals from the water.

What I like

This unit comes with a compact design which you can fit in your RV without it taking up much space. Also, it you won’t have to connect or disconnect it when you want to regenerate it. It has got a base that is more secure and you don’t have to worry about it falling as your vehicle moves. I also liked its capacity and how it can serve you in case you utilize a lot of water.

What I don’t like

What I didn’t like was the fact that the in-built hose fitting will not rotate.

  • It is made of a durable construction
  • It has a full cradle base that is secure
  • It also has a high flow rate with a low pressure drop
  • Ideal for most applications
  • Effective in softening the water making it safe
  • It has in-built hose fittings that are fixed and won't rotate

Are you looking for the most economical water softener on the market? If you are, then the CR spotless might be what you need. This unit will offer you 150 gallons of spotless water regardless of your water supply quality. This unit is equipped with an integrated stand which will allow you to carry this unit conveniently with one hand. It also comes included with accessories such as a 20 inch de-ionizing resin cartridge, spray nozzle, water purity indicator, input line and a filter wrench. All these are to give you the best user experience.

What I like

I like the spot free technology on this system which can help you get spot free water for use on different applications. This feature makes this unit very economical and you can get to save money while getting professional results. On top of that, it comes with different accessories to help you get the most out of this system.

What I don’t like

This unit cannot handle water with total dissolved solids (TDS) over 850. So before you buy the unit you must know the TDS value of your water.

  • Comes with the spot free technology
  • It can be used on several applications
  • It helps save money
  • Comes included with accessories
  • Won’t handle water with a TDS value over 850

This water softener system will work to minimize bad taste, sediment, chlorine, odors, bacteria and other water contaminates. This water softener has a compact design which can fit in your vehicle without taking up much space. It is specially designed for you if you are a low volume consumer. It will filter water from any source and it will utilize a 5 micron barrier as well as a granulated active carbon filter to get the job done. It will filter your water to give you great tasting clean water for consumption on your camping trips.

What I like

I like that it is easy to install and to use. It is also less demanding when it comes to maintenance, you will only replace the filter on your next camping season otherwise it won’t need any replacements during a single camping season. You can attach the hose extension to a garden hose or any other hose. It is also a good system to remove cadmium, aluminum, bad tastes, odors, heavy metals and other impurities.

What I don’t like

This unit will only work well for you in case you use less water. Those who require high water volumes can’t use this system.

  • Ideal for removing impurities and heavy metals
  • Comes included with accessories
  • It has a compact portable design
  • Utilizes a 5 micron barrier with activated carbon filter
  • It complies with low lead laws
  • Will not filter large volume of water

If you are looking for a popular well designed water filter system then this unit might be what you need. It is an award winning model which is highly reviewed by various RV owners to help filter their water while on the go. It comes with a triple stage filtration system that will ensure that your water is safe from heavy metals, odors, bad tastes among other impurities that maybe in your water. This unit is designed to be utilized anywhere and thanks to its compact portable construction, it will not take up much of your space.

What I like

I like the three stage filtration stages that are effective and ensure that this unit leaves your water free from contaminants and heavy metals. It also has a durable construction that will guarantee a performing water filter system that is also long lasting. It is easy to use and the installation process is hassle free.

What I don’t like

It has fixed hose fittings which will require you to often twist the hose on and off of the fitting. Other than that I didn’t find any other draw backs on this unit.

  • It will remove water contaminants
  • It has a durable construction
  • Triple filtration stages
  • Ideal for use anywhere
  • Easy to use and install
  • Hose fitting is fixed

Another best water softener is the on the go 8000 grain model. This unit is known to be original and a great compact water softener that will give you soft water preventing hard water from reaching you. I find this unit effective in its work as it comes equipped with hardness test strips, shut off valve, storage inlet and outlet caps, hose adapters, back-flush adapter, and a 4” hose. All these are included to give you ease of use and to make installations easy.

What I like

It is slim and you can install it in tight spaces thereby saving you space. The installations are easy thanks to the numerous accessories that this unit comes with. You will get soft great tasting water when you introduce this water softener to your RV water supply. It is effective and I like that it comes at a reasonable price.

What I don’t like

It comes with fittings which are made from flimsy plastic which can break apart anytime.

  • It is effective in providing soft water
  • Has a secure full cradle base
  • Comes included with several accessories
  • Easy to install and use
  • Regenerates quickly
  • It has weak fittings

This water softener is what you need if you require a more effective unit that will remove what you don’t need while adding what is essential for your water. Wouldn’t like to take a shower with water that you can actually drink? Well, this unit is designed to offer you the best water for your showering. It is ideal for RV owners or for those that love camping but are worried about using unhygienic water.

What I like

I like that it can soften your shower water to the point of it being safe to drink. Also, it is great attachment with any type of shower so whether you have a handheld or wall shower, you can still utilize this softener. On top of that, this unit is effective in softening the water while adding essential skin and hair nutrients to the water. It is also made from durable material meaning it will serve you for a very long time.

What I don’t like

The filter tends to only let through small amounts of water. However, this problem can be solved by proper installation.

  • It comes with some installation accessories
  • Effective water shower water softener
  • Adds skin and hair nutrients
  • Features universal fittings
  • Can be used on any type of shower
  • Improper installations lead to little amounts of water flow

If you are looking for a storable unit that will provide you with effective performance, then I suggest you try this model. It comes from on the go brand which is one of the best manufacturers of portable water softeners. It comes with several features that will give the best user experience that you wouldn’t get from other units in the same category. It has a large mouth that will allow you to easily and quickly access it when adding salt for regeneration. It also features a high flow rate to ensure that water is softened quickly.

What I like

It is made of durable materials which guarantee a longer serving portable water softener. It also comes with accessories which will make installations easy and quick. It boosts a user friendly design and it is effective in softening of water. Regenerating is quick and simple thanks to the easily access wide mouth it features. You will also not have to worry about quality issues thanks to the full manufacturer warranty.

What I don’t like

One minor drawback that turned me off where the plastic fittings which are weak and can easily break anytime if not handled well.

  • It is effective in softening water
  • Easy to use and install
  • Included with accessories
  • Regeneration is quick and easy
  • Full manufacturer warranty
  • Weak plastic fittings

This unit has a grain capacity of up to 12,800.  This capacity will meet all your water softening needs without any problems. It is effective in removing contaminants as well as heavy metals from the water leaving it fresh for days. This model also has a compact portable design which you can easily install in tight spaces. It is its portability that makes this unit ideal for use on RVs, boats and on camping sites. It also features a wide mouth for you to easily and quickly add salt.

What I like

It comes with a durable construction that makes the unit strong to last for years. The ABCwaters warranty will deal with any quality issues that may arise. It is portable and ideal for use in your RV or boats. The water this unit softens can be used for your consumption and for washing your RV. It will also take a few minutes to regenerate and you can choose between common table salt and rock salt.

What I don’t like

Some users found it had to seal this unit. Another thing is that it tends it leak constantly if it isn’t sealed well.

  • ABCwaters warranty
  • Durable constructions
  • Ideal for use on boats, RVs and washing cars
  • Generous grain capacity of 12800
  • Regenerates quickly
  • Hard to seal off completely

Things to Consider When Buying a Portable Water Softener

Before you purchase a portable water softener, there are a few things that you must keep in mind. These factors are important if you want to get the best portable water softener on the market. They will also guide you to selecting one suitable for your needs. Below I will take you through some of these important factors and when you are done going through them you will be able to weigh your options and purchase the best water softener for your needs.

Grain capacity

When buying a portable water softener, you need to consider the grain capacity of the model you intend to buy. This is because the grain capacity will determine how the ability of the softener to soften your water depending how much water you consume. If you buy a unit with less grain capacity it may not serve your needs and if you buy one that has a larger grain capacity it may be too much and you will spend a lot of money on it. So you need to know your needs to choose the right unit with a suitable grain capacity.


Different brands from different manufacturers come with varying features which are an important and this affects your buying decision. Buy water softer from any recognized brand as long as it has the features you are looking for. Nowadays there are so many products in the market and that means there are genuine and non genuine ones. If the product you are looking for is not reviewed in this article, try to look for its reviews on the internet. There’s a higher chance you will be more satisfied from one of the RV water softeners we have reviewed.


The size of the water softener you go for is also very important. Most manufacturers provide a rated number on the water softener and this information guides you on the amount of grain hardness it can remove between sessions highly recommend a water softener that will work for a minimum of 2-3 days before recharging.

Also look for a portable water softener as this will determine on how easily you can handle it from one place to another. Buy one that fits in your cabin or boat.

User friendly

Of course you need to purchase something that is easy to use and operate. Making an order before understanding the ease of installation, avoid those with complicated or difficult installation instructions and go for the one with the easiest installation instructions. This way you will love the product more and using it every day will much more fun.

There are products that don’t have information on installation. Look for customer reviews on the same and you will be surprised at different reviews people made on the same product that you never thought about or those experiences you do not want to come across. I would recommend a product that will take you an hour or two to install, otherwise you will need an expert to help you install. This means the product is not worth your money.

Frequently Asked Questions

Q: How do you measure the hardness of water?

A: Water hardness is measured in grains per gallon (GPG).a grain of water hardness is equated to 1/7000 pounds of a rock. Most water companies measure the hardness in milligrams (mg), liters (l) or units per million (ppm).1gpg is equal to17.1 ppm.

Q: How can I measure the water hardness?

A: You can either call the local water supplier to know the water hardness level in your water supply.  You can also choose to purchase your own water testing kit for faster results. However, some of the models I have reviewed come with hardness test strips.

Q: What is the meaning of regeneration?

A: Regeneration is the process in the water softening cycle where the salt already in the water tank is mixed up with incoming water to get rid of hardness particles. The hardness particles tend to coat on the resin bed of your water softener over time and this leads to regeneration. After the regeneration, the water softener is now ready to continuously supply soft water into your home.

Q: What is the meaning of the grain capacity of a water softener?

A: This is a measurement of the quantity of water hardness grains that a water softener unit can remove before it regenerates. The higher the grain capacity means the higher amounts of water hardness to be removed by the unit before regeneration and the vice versa is true.

Final Verdict

That’s about it, by now you know which model is ideal for your needs and which ones will be a waste of money. It is extremely important to choose a unit that will serve its purpose and handle all of your needs effortlessly. The best portable water softener will not only provide you with soft water, but also condition your water leaving it fresh for consumption and for other applications. Know how much you consume and the TDS value of your water. These will help you select a unit that will serve you better.

 With the guide above I believe you now know the other important considerations that will help make your decision easy. All the units I have reviewed above are of high quality, they are performing depending on your needs and are made of durable materials to offer you more years of service. Remember that a unit that may work for you may not work for another person that is why you have to select according to your personal needs. Whichever unit you go for, I guarantee it will not disappoint you in the long run you just have to choose wisely.

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