Fleck 5600SXT Water Softener Review 2024


This is our review of the Fleck 5600SXT Water Softener.

We have considerable experience in water filtration systems, and we researched the best water softener systems to help you out. In this article, we will give an in-depth look at the Fleck 5600SXT Water Softener to support your decision if this is the right softening device for your household.

In our view, the Fleck 5600SXT Water Softener is one of the best salt-based water softener systems available in the market. It is an NSF-certified device highly effective at softening water, delivers a good water flow, comes with a user-friendly digital control that allows multiple configurations and is ensured with an extensive warranty period.

In this comprehensive Fleck 5600SXT Water Softener review, we will analyze the system’s main features, capacity, flow rate, installation & maintenance process, its warranty, discuss customer reviews, and potential alternatives for this water softener system.

Let’s get started!

Fleck 5600SXT Water Softener Overview

Top Choice Salt-Based
Fleck 5600SXT Water Softener
Type: Salt-Based
Dimension: 27 x 17 x 62 inches
Capacity: 48.000 grains
Flow Rate: 12 GPM
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The Fleck 5600SXT Water Softener is a point-of-entry (POE) system, so the hardness of the water is treated before it enters the household and impacts all the pipes.

This is a salt-based water softener so it uses an ion exchange process to remove water hardness, in which the sodium ions from salt replace the calcium and magnesium ions that cause water hardness. The Fleck 5600SXT Water Softener comes with a main tank that contains the softening resin, and a brine tank in which the salt is stored.

This affordable system includes some features that enhance its efficiency and reduce water and salt consumption. One of them is the meter-based regeneration process that controls the water used to avoid over-consumption.

If you need a system that reduces the water hardness in your household so that you can get rid of limescale deposits in your pipes & appliances and get many other benefits, the Fleck 5600SXT is a good solution.

Fleck 5600SXT Water Softener Main Features

The Fleck 5600SXT Water Softener is a salt-based system that uses ion exchange to effectively reduce water hardness. This system contains a high-quality resin that ensures the sodium ions are exchanged with calcium and magnesium which are the cause of water hardness.

This resin is 8% crosslinked which is important to make it more resistant to chlorine and is usually found in municipal water, prolonging its lifespan.

The Fleck 5600SXT Water Softener uses a meter-based regeneration process in which the water used is measured, meaning that the system only regenerates when needed, reducing the water and salt wasted, and increasing the water softener efficiency. 

This system also includes a double backwash on the regeneration cycle to increase the process efficiency. And to give extra protection, this water softener includes a safety float and overflow drain in the brine tank to prevent overflow.

The Fleck 5600SXT Water Softener is NSF certified so you can be sure that it was independently tested and can reduce water hardness.

A great feature that differentiates this system from others is the digital control with an LCD display and a user-friendly interface that allows different activities, like:

  • Measure water usage & remaining water volume
  • Control regeneration cycles
  • Choose regeneration mode (immediate meter regeneration, delayed meter regeneration, delayed time clock, or day of the week regeneration)
  • Adjust salt usage
  • Display system status & error codes

The Fleck 5600SXT Water Softener has a bypass valve so that you can select when you don’t want to soften the water, like when you need to water your lawn or wash your car. This feature allows you to save water and salt unnecessarily.

Fleck 5600SXT Water Softener Capacity

The capacity of a water softener is the amount of water it can soften and is typically measured in grains per gallon (GPG), in which one grain represents 0.002 ounces of calcium carbonate in 1 gallon of water.

The Fleck 5600SXT Water Softener has a 48.000 capacity, which is recommended for families up to 6 people, or households with up to 6 bathrooms.

For each 48.000 gpc of water softened, the Fleck 5600SXT consumes around 24 pounds of salt.

Fleck 5600SXT Water Softener Flow Rate

For most households, a water flow rate of 9 GPM (gallons per minute) is enough so that a drop in water pressure won’t be noticeable.

Fleck 5600SXT Water Softener can deliver up to 12 gallons of water per minute, which is good for most families.

If you have a large family that needs to use water simultaneously in multiple locations, you can select the model Fleck 5600SXT Water Softener with 64.000 grains capacity.

Fleck 5600SXT Water Softener Installation & Maintenance

While the installation of the Fleck 5600SXT Water Softener installation is not super complicated if you have some DIY skills and follow the instructions, it is not simple as it involves cutting pipes to connect the device to the main water line.

If you like these types of tasks you can do it by yourself in a few hours, but if not it is better to call a plumber to install the water softener.

To support the installation of the Fleck 5600SXT Water Softener you can find here the installation manual.

Then you only need to set up the system, which it’s easy to do with the user-friendly digital control that allows you to do different types of configuration as mentioned above.

Because the Fleck 5600SXT is a salt-based water softener, you will need to buy salt now and then as instructed by the manufacturer.

Fleck 5600SXT Water Softener Warranty & Support

The Fleck 5600SXT Water Softener comes with a 5-year warranty for the bypass valve and a 10-year warranty for the tank which will give you some peace of mind when buying this product.

Something that was mentioned in the reviews by customers was the good customer support during the installation.

Fleck 5600SXT Water Softener Reviews

On Amazon, the Fleck 5600SXT Water Softener has a 4.6 stars rating with hundreds of reviews and more than 90% of them are from 4 or 5 stars, showing customer satisfaction with this product.

Reading the reviews in more detail we noticed that customers believe this product is a good value for the money spent.

Fleck 5600SXT Water Softener Alternatives

If the Fleck 5600SXT Water Softener system isn’t the ideal solution for your household, there are other alternatives that you can consider.

SpringWell Salt-Based Water Softener


A great alternative is the SpringWell Salt-Based Water Softener system.

This is one of the best water softeners available in the market that effectively reduces water hardness, comes with several nice features, offers a lifetime warranty, and comes with a mobile app that allows you to set up, control, and monitor the system.

SoftPro Elite Water Softener for Well Water


If you need to deal with well water in your household, the SoftPro Elite Water Softener for Well Water might be the right choice for you.

This highly efficient water softening system not only reduces water hardness but also removes iron and heavy metals from the water, making it the ideal choice to deal with well water. Apart from that, it includes nice features such as auto salt recharge or smart precision brining, and offers a lifetime warranty.

YARNA Capacitive Electronic Water Descaler System

If you prefer an electronic water descaler that you can install in a few minutes without having to cut pipes in your household, the YARNA Electronic Descaler is a good option.

The YARNA CWD24 Electronic Water Descaler is an affordable and easy to install device that prevents scale buildup, works with any water hardness level, is maintenance-free, does not impact the water flow in your household, and comes with a 1-year money-back satisfaction guarantee.

Our Verdict

We believe that the Fleck 5600SXT Water Softener is a good water softener to buy and we choose this water softener as one of our top salt-based water softener choices for the best water softener systems.

The Fleck 5600SXT Water Softener is NSF certified, contains a high-quality resin capable of effectively reducing water hardness, has a bypass valve that lets you choose when to use its softening capability or not, and a user-friendly digital control that allows different configurations and monitoring capabilities.