Citymaster 5600SXT Water Softener by Aqualux | Aquatell
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Citymaster Fleck 5600SXT



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Ultimate Water Softener Guide

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  • Choose efficiency first
  • The right way to choose size
  • Fleck vs Autotrol vs Clack
  • Myths and Misconceptions


We built this softener based on customer demand for a highly-efficient, rock-solid performing, and nice looking softener. Mission accomplished! Ultra low salt consumption, crazy-easy installation, small footprint, and an industry-leading warranty are the hallmarks of the Citymaster 5600SXT by Aqualux. Perfect for city-water installations and rural applications with iron below 2.0 ppm. It features the legendary Fleck 5600SXT control valve and and 10% cross linked resin for rock-solid performance and longevity. Ideal for applications up to 30 grains-per-gallon hard, this softener uses less than 20 pounds of salt per month in most applications.  Ships fully built and ready to install.

Tech Specs

  • Softener Efficiency Rating (SER): 5,000 grains / pound @ 15,000 grains capacity
  • 1.0 cubic foot of resin
  • 10% cross-linked resin
  • Install Location: Point of Entry
  • Dimensions: 44.5" Tall x 22.5" Deep x 12.5" Wide
  • 225 lb brine tank capacity (about 5.5 x 40 lb salt bags)
  • Plumbing: push-to-connect fittings receive any 3/4" tube
  • 3/4" threaded connectors also included
  • Electrical Requirements: 110V Standard

In the Box

  • Fleck 5600 SXT valve with digital controls
  • Fiberglass resin tank (black)
  • 1.0 cubic feet of 10% cross-linked water softener resin
  • Bypass valve
  • Top basket (prevents loss of resin)
  • 3/4" push-to-connect plumbing fittings


  • 5 years on softener control valve
  • 10 years on softener resin
  • 10 years on tanks
  • 10 years on everything else

This warranty is for manufacturer's defects only. Certain water softener components, such a the main piston, seal & spacers, and the brine valve will experience wear and tear during normal usage of the softener and are not covered under the warranty.

Customer Reviews
4.0 Based on 9 Reviews
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Roman S.
Great performance and support

I took their advise on which water softener model for my application and the Citymaster was suggested. Prompt delivery occurred to a rural Quebec location. After a professional installation, I got further email support from Aquatel to get the setup optimal. The water is well conditioned and the system is seriously frugal on salt. I reccomend you buy your water softener from Aquatel.

Joseph D.
minor issues but I figured them out

When I got the softener, the head was not properly attached to the tank. When I turned the water on, I found out the hard way. I got wet. When I turned the water back off, I was able to figure out the problem and fix it my self. Also, they only sent the email to tell me it had shipped a couple of weeks after a angry delivery guy called me to ask why I wasn’t home in the middle of the day. He then left the water softener on my porch because delivering at a time that wasn’t 12 noon just wasn’t an option for him. All that being said, the water softener seems to be working properly.

Gus G.
Still in the process of investigating product malfunction

I bought two softeners. One installed and seems to work fine. The other seems to have a leak in the resin tank. I have been in correspondence with a sales rep on how to diagnose the problem. I am currently awaiting further instruction. Reid has been helpful thus far. I just wish the softener worked out of the box.

Duane B.
Multiple Issues

Once I received the unit and then had to assemble and program the unit it seems to be working fine. All I can say is that his one fell through the cracks with regards to shipping, assembly and programming. It did not come ready to use, I have to say the if it wasn't for excellent assistance of "Reid" at Aquatell and his knowledge and help I would of sent it back. He is the saving grace on this product, I can only hope that it works for the stated warranty.

David H.
Good unit bad instructions

Okay, unit works well but installation instructions were poor.

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