
DuraWater Fleck 5600SXT
Score: 88/100
Discount Water Softeners Fleck 5600SXT
Score: 88/100Rankings

The DuraWater Fleck 5600 SXT is a whole-house water softener featuring a 48,000-grain capacity resin tank and the industry-standard Fleck 5600 control valve. It utilizes meter-based regeneration to adjust cleaning cycles based on actual water usage, offering improved efficiency over traditional time-based systems. It is best suited for whole-house applications requiring comprehensive hard water treatment with a focus on reliability and efficiency.

The Fleck 5600sxt by Discount Water Softeners is a highly efficient, digital metered water softener that saves up to 40% on salt and water usage. It features a compact design with a 40,000-grain capacity and a 12 GPM flow rate, making it ideal for moderate to hard water conditions. It is best suited for environmentally conscious homeowners seeking low maintenance and long-term value.
| Attribute | ![]() | ![]() |
|---|---|---|
48,000 grainsbest | 40,000 grains | |
13 GPMbest | 12 GPM | |
1.5 gallonsbest | 1 gallons | |
4 personsbest | 4 personsbest | |
| ↓ lower better | 62 inches | 44 inchesbest |
| ↓ lower better | 28 inches | 10 inchesbest |
| ↓ lower better | 15 inches | 10 inchesbest |
10 yearsbest | 10 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Durability(1) | ||
Tank Material | Fiberglass | Standard |
Power & Compliance(1) | ||
Power Source | Electric | AC (120V) |
Performance & Capacity(3) | ||
Grain Capacity (grains) | 48000 grains | 40000 grains |
Service Flow Rate (GPM) | 13 GPM | 12 GPM |
Resin Volume (gallons) | 1.5 gallons | 1.0 gallons |
System & Control(4) | ||
Regeneration Control Type | Digital Metered | Meter Demand |
System Type | Single-Tank | Whole-house |
Salt Requirement | Standard Salt | 250 lbs |
Display Type | Digital | LCD |
Physical & Installation(4) | ||
Height (inches) | 62 inches | 44 inches |
Width (inches) | 28 inches | 10 inches |
Depth (inches) | 15 inches | 10 inches |
Weight (lbs) | 53 lbs | lbs |

Products in the top-left offer the best value (high score, low price).

Professional reviewers and industry guides widely recognize the Fleck 5600 SXT as a standard in the water softener industry. Experts highlight the valve's market dominance, attributed to its rigid Noryl construction, low power consumption, and efficient meter-based regeneration. The system's engineering simplicity, featuring only one internal moving part in the water stream, is cited as a key advantage for reliability. Documentation and service manuals are noted as comprehensive, supporting straightforward installation and maintenance.
Consumer feedback indicates strong satisfaction with the Fleck 5600 platform, driven by its reputation as the most popular control valve globally. Users commonly praise the system's ability to protect plumbing and appliances from hard water scale. The meter-based regeneration feature is frequently appreciated by cost-conscious consumers for its efficiency in reducing salt and water consumption compared to older time-clock systems.



The Fleck 5600 SXT is described as Fleck's most popular controller and one of the best whole house water softeners, praised for its advanced features combined with a simple design.
Customers appreciate the automatic metering system that adjusts regeneration frequency based on actual water usage patterns, noting scale reduction and extended appliance lifespan.