5 Best RV Water Softeners Review & Buying Guide 2020

Here are the best RV water softeners that ensure you can get contaminants-free water. Being an RV owner, I knew about the importance of water softeners. So, I am here to help you with the best options.

In this view, choosing the best one would be a daunting task for you. But this review would be enough for you against hard water. Also, we all know that the hard water inside your RV pipes can damage rusting or scaling. So to sort out that problem, you have to get the best RV water softener.

Best RV Water Softener reviews

With an unlimited range of water softeners on the market, it would not be easy to get one right. Somewhat, it can be overwhelming, but we have such models that are the best-selling on the market. It ensures you can make the right choice according to your needs. Let’s look at a glance, what are the best RV water softeners available on the market.

Are you In a Rush? Here are our Top Picks

Best Over all
On The Go OTG4-DBLSOFT-Portable 16,000...
Runner's Up
FLOW/PURWATT Watts RV PRO-1000 OR M7002...
Best Over all
On The Go OTG4-DBLSOFT-Portable 16,000...
Runner's Up
FLOW/PURWATT Watts RV PRO-1000 OR M7002...

Do you need more details about the products? I have discussed them one by one in detail below.

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


Our first choice for the best RV Water Softeners is the On the Go OTG4-DBLSOFT. It is a handy tool so you can easily carry with you a large capacity of grain. It offers a capacity of grains up to 16,000n, which is twice its original version.

Unlike other water softeners, this model emphasizes its ability to supply up to 40% soft water. All thanks to its high capacity portable style. It also impresses you by providing less than 30 minutes’ regeneration time.

It has a compact design. With the space-friendly design, it is very convenient to use. It boasts a big mouth opening, which is easy to carry around through its built-in top-handle.

Out of its amazing features, each of its cycles can deliver up to 1,600 gallons. It lasts up to 40 days. Another great feature about the product is, it is customized for marine and RV owners.

However, there is some user that reported leaks at the fittings. This issue can easily overcome by using Teflon tape.

Moreover, there is an inlet hose. It offers 360 degrees swiveled. Indeed, it is efficient to connect. Besides that, it also ensures without leakage functionality. With a travel-friendly cap and plug, it is the best 1,600-grain water softener.

Product Features

  • Largest compact RV Softener with Double Standard softener & Conditioner produces
  • Up to 16,000-grain capacity that regenerates in less than 30 minutes
  • Space-saver design that allows high flow rates with a low-pressure drop
  • Largemouth design with high-grade premium resin and 360-degree swivel
  • Large capacity
  • Space-friendly
  • Bigmouth opening
  • High compatibility
  • Easy to carry
  • Some leak issues


Overall, the On the Go OTG4-DBLSOFT offers sufficient grains capacity. It ensures you can get the water free from the germ, industrial solvent, herbicides, and other chemicals.

2- Watts Water Quality/Condition M7002 10,000 Water Softener

watts water quality

The Watts Water Quality/Condition M7002 10,000 Water Softener comes with reliable features. It is a dependable handy package with watts RV water 24 lbs.

The design is lightweight and compact. It promotes easy installation. Unlike other units, it comes with a unique valve design. It lets you regenerate without any hassle.

Thanks to its tank design that is more secure as compared to other water softeners. All thanks to its full cradle base, which is super flexible.

This model is offering more effective regeneration. It is because of the aid of its drain line flow restrictor. It helps in raising its capacity by up to 55 percent.

With easy installation, it doesn’t matter whether it’s a cabin, RV, Home, or cabin. Apart from that, it delivers a high level of performance with just the common table salt.

Besides that, this unit doesn’t swivel. You can face some problems when using long hoses.

Moreover, we also like its high flow rate. It has a range of up to 4 GPM. It is also combined with its low-pressure drop. With the high-pressure drop, it ensures you can maintain excellent water pressure until the last fall.

Product Features

  • Has built-in drain line flow restrictor as well as full cradle base
  • Provides more effective regeneration with capacity by up to 55%
  • With custom design allows regeneration without having to connect/disconnect the system
  • Up to 4 GPM high flow rate and uses common table salt
  • Lightweight and compact
  • Has more secure tank
  • High flow rate
  • Easy regeneration
  • Might face hose issues


Overall, this water softer has all the features and specifications that the best RV water softener needs. Apart from its hose issue, it is one of the top recommendations.

3- Mobile Soft Water – Best Portable Water Softener

Mobile-Soft-Water Portable

The Mobile-Soft-Water Portable Water Softener offers a pretty good job with 16,000 grains capacity. It is softening water in recreational vehicles with great ease.

Out of its amazing features, this unit can remove water up to 16,000 grains in total hardness in water. It ensures you would get the water free from lead, iron, magnesium, iron, and other harmful effects.

Another significant advantage is that the unit offers a max of 5 gallons of water per minute. It promotes a natural carrying style. We also like its quick regeneration process without the need for electricity.

Apart from its mobile nature, there features a tank. It can handle up to one-half cubic of high capacity water softening resin.

Moreover, it comes with premium quality material. It is including lead-free nylon for inlet connection, with fiberglass reinforced plastic, which maintains the level of pressure.

Besides that, its sturdy nylon fitting is approved by the National Sanitary Foundation. It is safe to use when treating drinking water.

Product features

  • Comes with 16,00 grains total hardness removal portable as well as manual
  • Highest recommendation for recreational vehicles use
  • Ensures removing total hardness as well as soluble iron
  • Lead-free USEPA, NSF61 approved water connections
  • High grains capacity
  • Portable and lightweight
  • NSF approved
  • Sturdy nylon fitting
  • Doesn’t have input water hose connector


Overall, the Mobile-Soft-Water Portable Water Softener is easiest to regenerate without using electricity. Also, it has high capacity water softening resin with robust nylon fitting.

4- On The Go OTG3NTP3M Portable Water Softener

OTG3NTP3M Portable Water Softener

The On the Go OTG3NTP3M Portable Water Softener would be an excellent choice for the best RV water softeners.

Unlike other models available on the market, it is offering easy to use style. It is incredibly portable with a good supply of soft water for around 7 to 14 days.

With the lightweight and compact design, it is offering a softening capacity of up to 300 to 700 gallons. Another great feature is its quick recharging as well as regeneration time.

However, it is impossible to recharge or regenerate in less than fifteen minutes by using a box of common salt.

Moreover, it is also easy to fit because of the caps. It can be placed on the outlet as well as an inlet valve. We also appreciate its high control of water flow in the inlet pipe.

Furthermore, we also like its adapters. It will hook up to RV, marine, and garden hose water connectors without any hassle. In this regard, we can say that this unit promotes flexibility, as well as its versatility.

Besides that, here is a bit thing that you have to compromise over its quality. When it comes, it is not offering ready to use design. But you can set it up fast by reading the manual.

Product Features

  • Most compact and user-friendly softener/conditioner available on the market
  • Offers up to 8,000-grain unit for optimal functionality
  • Patent-pending design and ease of use
  • Improved water quality as well as largemouth opening
  • Soft water remains up to 7-14 days
  • Lightweight and portable
  • Easy to hook up
  • Easy to store
  • Not ready to use when unwrapping it from the box


All in all, the On The Go OTG3NTP3M Portable Water Softener helps prevent rust stains, avoid scale build-up, and offer optimal functionality. Indeed, it is one of the best RV water softeners available out there.

5- On the Go OTG4-StdSoft-Portable 8,000 Grain RV Water Softener

On The Go OTG4-StdSoft-Portable

The On the Go OTG4-StdSoft-Portable 8,000 Grain RV Water Softener is another trusted model. It has a grain capacity of 8,000. It is useful that prevents hard water as well as rust stains.

Out of its amazing features, the model avoids scale build-up. It improves taste and odor. It also increases the lifespan of appliances. This unit improves dry skin while increasing lathering soaps.

Unlike other water softeners, this unit improves the odor and taste of water. It guaranteed you to get chemical-free water.

Moreover, it is built for RV as well as marine users. It lets you enjoy an 8,000-grain capacity that makes a perfect fit for the units.

Furthermore, the best feature of this unit is its portability. It can regenerate using just a box of table salt within 15 minutes or less. Also, it is slat free RV water softener.

Besides that, this unit gives a decent supply in each regeneration cycle. It allows soft water for up to twenty days. Also, it comes in a compact size. It gives you the chance to install it even in small places.

Additionally, it is offering a high flow rate while complementing it with a low-pressure drop.

Above all, this unit is also easy to hook up. But we have found that its fitting is made of plastic, which is a bit flimsy and weak.

Product Features

  • Easy to carry handle with large mouth opening
  • Quick as well as easy regeneration
  • Comfortable as well as fast hook up with space saver design
  • Easy to use carry handle
  • Great regeneration time
  • The ideal choice for Marine and RV users
  • High grain capacity
  • It is also a bit flimsy


Overall, the On the Go OTG4-StdSoft-Portable 8,000 Grain RV Water Softener is providing a great deal when it comes to the best RV Water Softeners. Indeed, it improves rough stains, taste, and eliminates bad odors.

RV Water Softeners Buying Guide

You have to keep certain features in mind when it comes to choosing the best RV water softeners. A water softener for RV is important so that it would be a big investment. Here is an important note for you that never get a water softener with standard features. It will not only waste your money and time but also cause problems for your health.

Here we are going to give you each detail so you can’t look further to get a wrong decision. Let’s know what factors are important to consider for you.

1- Size

The size also matters. When it comes to the best RV water softeners, you have to select the right one according to your needs. It is recommended that go for a portable design is possible. This feature saves you from inconvenience when you need softening water outdoors. It doesn’t matter whether you are in your home or outdoor camping, it is suitable for both. Although a portable water softener looks smaller, it is enough when it comes to RV. Its size is enough for up to 4-5 users.

2- Type

The foremost step for the best RV water softeners is to see their type. You should decide which material will be suitable for you. When it comes to the RV softeners, you should get salt-free one. This system will be the most suitable choice if you are dealing with salt issues.

Moreover, you should also keep other water softeners in your mind. It is because water softener can descale. It depends on the water condition.

On the other hand, you also have a choice. Yes, you can choose the electronic system. But it doesn’t eliminate all the contaminants from hard material. The big reason behind this feature is that it uses electric wires to change the charge integrated with the hard water.

But did you know that it is still beneficial? The reason is it prevents hard minerals from getting stuck in pipes or plumbing features. That the reason it saves your money as well as maintenance costs.

Besides that, you also can choose the magnetic water system. Why is it being called a magnetic softener? The answer is that it comes with the strong attached material.

It works with the aid of magnets. In such a way, the impurities will be eliminated. This feature ensures you will get water without clogs in both plumbings as well as fixtures.

3- Water Hardness Level

So, it is important to factor that determines how much the hardness is in your water. This feature lets you measure the present hardness in the water. To measure the levels of hardness, we use commercial kits.

If we talk about the hardness level of the US, it is around 30 to 20 GPM. This is a moderate hardness level, so there are so many efficient water softeners are available on the market. From slight to moderate, we recommend you to go for them. However, if the water has severe hardness levels, it is recommended to look for even more efficient water filtration systems.

4- Grains Capacity

The grain capacity of a water softener determines how much the contaminants can get rid of. Every water softener has a specific grain capacity. Before making a choice, you have to decide how much grain capacity you have to take. It eliminates every week. In such away, you can figure out what capacity of grains would be a perfect choice for you.

To determine the grain’s capacity, you have to multiply the GPG value with the consumption of water gallons that your family drinks. Through this way, you can get a clearer idea of the needed capacity. Besides that, commercial water softeners have a grain capacity of around 15,000 to 100,000.

You must keep in mind that a water softener with the wrong capacity of grains is a waste of money. You should keep ensuring that it is enough for your water usage. If it is too big, it would be a wastage of money.

However, if you are planning to buy a salt-based water softener, then you should get a bigger capacity or size. It is because this type of water softener regenerates less. But its advantages are, it gives longer service time.

5- Flow Rate

When it comes to the flow rate, it is known for the speed a filtration system provides in the form of gallons per minute. In addition to that, the flow rate is based on the model to model.

The rule of thumb is how large the grain’s capacity is; it would produce a high amount of softening water. Besides, it will also ensure the speed of the flow rate. In this regard, you can compare it with RV usage. It also helps you to determine which one is not beneficial for you.

6- Built-in Features

For default features, it would be enough for you to hold all of your certain things. You should keep in mind that there is some water softener that is manually used. It is causing regenerate every time. On the other hand, most of the best RV water softeners are integrated with high-end features as well as qualities.

It is a fact that the water softeners that tend to restart automatically are more convenient. This type of system doesn’t make you burdened by constant renewal as well as regeneration. That’s why we recommend you select this type of filtration system. It doesn’t only save your time and effort but also provides the automatic regeneration of water. You can easily find the best auto water softener.

7- Maintenance

Last but not least, a water softener is also determined by its preservation needs. Several water softeners require certain maintenance daily. For such systems, you have to clean their tank regularly. If you are using a salt-based water softener, then you have to refill the salt pallets frequently.

Alternatively, you must keep in mind that most of the best RV water softeners don’t require regular tune-ups. So by keeping both of the supplies, you have to keep both side advantages in your mind. Not only the benefits but you should also notice about their cost. Besides that, this factor also lets you enjoy getting a smooth functionality.

Above all, these are the crucial factors that are worth considering when it comes to the best RV water softeners. Before making a choice, you should figure out your needs so you can get the right one. However, if you have any confusion, then let us know by commenting below. We are always here to help you to sort out your problem.

RV Water Softener FAQs

1- What is the regeneration time?

The regeneration time of a water softener is between 85-90 minutes. It is a duration period where a water softener regenerates. Every system comes with a pre-set regeneration time. In this process, a water softener cleans the contaminants in the water.

2- Does the whole house water filter impact the flow rate of standard water?

Without a doubt, it does, but you can get rid of this issue by investing in a water filter that offers a 15-20 GPM flow rate. In such a process, it lets you enjoy improved water pressure.

3- How to maintain your RV water softener?

All the water softeners require maintenance, but it depends on the model to model. All the instructions will be given to each of the instruction manuals with each device.

However, most of the systems don’t require high maintenance, so you have to look up, which suits your needs.

The Bottom Line

All in all, we have provided the best RV water softeners with all information. Let me know this; the best RV water softener will not let you cause hard water damages. It will not only be beneficial for your health but also your appliance or machines. So we have compiled the best models. For more convenience, we have added a buying guide so you can choose the best one. However, if you have any problems, then you can comment below. Thank you for visiting us!