Fleck 5600SXT digital metered water softener is perhaps the best selling water softener system for the medium to large household. It sells so well partly because it is very effective at dealing with hard water and partly because it is so affordable. The Fleck 5600SXT also has a unique set of specifications that makes for a super easy set up and softening.

Unlike saltless or salt-free water softener the 5600SXT is a salt-based system. This means it actually REGENERATES and creates soft water. This is something that Fleck does particularly well because it does a good job of automating this process. This means you can almost ‘set it and forget it’ with a guarantee of good quality soft water.

Do you want to know the best part?

People almost NEVER complain about their Fleck water softening system not working.

Fleck is one of the most popular and best selling water softeners on the market today. Who makes fleck water softeners? There are different versions of fleck but the most common one is made by ABCwaters who hand assembly it in Arizona.

To provide you with a more balanced view here are some of the pros as well as the cons of getting one of the best selling water softener systems on the market today.


  • It is very easy to use and designed to be relatively maintenance free.
  • Very effective at softening hard water.
  • Has a generous warranty that is longer than the average for most softeners. 
  • It is meter regenerated, meaning that it automatically runs off your water meter.
  • Has a large capacity (1-4 people).


  • It’s a heavy and big bulky system that needs significant amount of space.
  • It is linked to running costs of regularly buying salt pellets.
  • It might not be right for a larger household, consider getting a higher capacity Fleck SXT model like the Fleck 9000SXT.

Fleck 5600SXT 48,000 Grain Water Softener: Full Specifications

  • It comes with a meter-based control system with a screen so you only have to push a few buttons to set up and generate soft water on demand. This also means you only need to replace the salt pellets every now and then.
  • 48 000 grain capacity system, which means it’s a good option for the average household of 1-4 people.
  • In simple terms, this machine uses salt pellets and resin beads to soften hard water and this also means it does not need the resin beads to be cleaned very often.
  • It has a softening system computer as well as a large brine tank this includes a standard 120v power outlet.
  • The dimensions are 10″ x 54″ (tank) along with a 14″ x 17″ x 33″ brine tank (as a guide, it will take up to 3ft X 18″ (width) of space.

Green Plus ArrowThe Good

  • It has a fully automated meter regeneration that can reduce running costs. This meter regenerated system is very easy to maintain and run. The ease of use also means that it has cheaper running costs because it is very efficient at managing water, thereby saving you money in the long run.
  • Longer warranty. Each Fleck 5600SXT comes with a generous 5 year warranty on the actual system and a full 10 year warranty on the tank. However, it is almost guaranteed to last a lifetime if you closely follow the instructions.
  • Easy to use control panel. Easily set up this Fleck model with its back lit LCD display that is easy to use with touch-pad controls.
  • Easy installation. You don’t have to be an expert plumber to install this water softening machine. A confident DIY-er or someone with basic plumbing knowledge should be able to install this system by following the instructions.
  • Value for money. There are many water softening models on the market and most of them cost considerably more than the Fleck 5600SXT, which typically costs a few hundred dollars. But even though it is low on cost, it is one of the most reliable water softener systems money can buy.

Red CrossThe Bad 

  • As with all water softener systems the 5600SXT is both heavy and bulk. so you will need sufficient room and manpower to both move (it probably needs at least 2 people to carry it) and install.

Is Fleck 5600SXT The Right System For Me?

Fleck 5600SXT is RIGHT For…

  • Family homes that have up to 4 people with up to 2 standard bathrooms.
  • People that need a ‘set it and forget it’ water softener system. This is because it operates on a meter based regeneration. I.e it only regenerates depending on how much water you use. The only thing you may need to check from time to time is the salt. Like all water softeners, this Fleck softener model needs salt to regenerate soft water. But this is very easy to do and should only take a few minutes. Also, salt is very cheap. You can easily pick this up from almost any large department or hardware store for about $12+ per 40lb bag.
  • Homes that experience medium to very hard water. Does your home have water that is harder than most? Does your kettle, sinks, tap faucets and home kitchen appliances suffer from limescale? This Fleck option is very effective at dealing with very hard water.

Fleck 5600SXT is WRONG For…

  • Very large households. If your home is a larger one and has more than 2 bathrooms and/or your water usage is ridiculously high then this model is wrong for you. Larger homes or high water users should consider a Fleck 9000 water softener.
  • People on a sodium restricted diet. Hard water is softened water with salt. This means that soft water will contain higher levels of sodium then regular water. However, you really shouldn’t be drinking soft water in the first place and I have written extensively about this in my post here.
Dashed Line

Fleck 5600SXT Water Softener Installation Tutorial | Video by ABCwaters

Dashed Line

Here is why Fleck 5600SXT so popular.

Mr Water Geek ThinkingIn a nutshell, Fleck 5600 SXT is popular because it is very effective at dealing with high levels of hard water.

It does this at a very competitive price when compared to other models.  

It also has a good capacity so can sufficiently provide soft water for the average home of between 1-4 people.

The 5600 SXT is also ideal for easy installation, easy setup and offers the best value for money. Consider getting this Fleck model because it:mrwatergeek winner badge

Green Plus Arrow

Takes care of itself (set it and for get it).

Green Plus Arrow

Good at dealing with very hard water.

Green Plus Arrow

Lower water usage means it has lower running costs.

I'm a health author, science enthusiast and 100% certified geek. My passion is to help you take control of your health and well-being by understanding the true importance of good quality water and healthy hydration.


  1. Thanks for your reviews. I have 2 questions about the Fleck system. 1) Can potassium pellets be used? 2) If it regenerates according to the amount of water used, will it regenerate at any time of day? For instance, it’s really annoying have to put off doing a load of laundry or taking a shower because the system needed to regenerate.

    • Hi Suzy

      Here are the answers:
      1) Yes, potassium pellets should generally be fine as they usually work in the same way as salt does. But it’s worth a quick call with the customer service team that represent the specific brand/model that you’re interested in buying.
      2) You can put the settings to generate at a more suitable time. For instance, make it generate every morning at 3am when you’re asleep so that you always get water during the day when you need it. You can speak to the manufacturers about how to change the settings.
      Hope this helps,

    • Hi David
      My understanding is that it is possible to install water softeners outside where it wont freeze, however, this is not going to be conducive to the machine functioning long term in an optimal way.
      But in any case please contact the manufacturer of the specific make and model that you’re interested in to get their approval before you go ahead with this and circle back here to let me know how you got on?
      Best wishes,

  2. IF we install it outside in a enclosed ‘shed’ with heat lamp during winter, would that be conducive to functioning normally? Why would cold hurt it? Our old water boss (3 of them over 25 yrs) has been installed in our well house for 7 years and ran fine. We do turn on heat lamps if a freeze is coming. But with our new house we are hoping FLeck will last longer than 7 years avg.

    • Hi Elizabeth

      You can double check with the specific manufacturer that is responsible for your machine but it’s my understanding that Fleck machine’s don’t work well under extreme weather conditions.

      Lamps might not be enough in a serious freeze and personally I wouldn’t take the risk.

      Perhaps you should stick with Water Boss if it’s worked well for you in the past?

      Stay hydrated,


Please enter your comment!
Please enter your name here