Regeneration Cycle Comparison: SoftPro Elite vs Fleck 5600SXT

Written by Craig "The Water Guy" Phillips

When comparing regeneration cycles, the SoftPro Elite clearly outperforms the Fleck 5600SXT. The SoftPro Elite uses upflow regeneration, cutting salt use to just 4–6 lbs per cycle versus Fleck's 6–12 lbs, while reducing water consumption by 64%. It also regenerates based on actual usage rather than a fixed schedule, so nothing gets wasted. If you want to understand exactly how these differences affect your wallet and your water quality, we've got the full breakdown ahead.

• SoftPro Elite uses upflow regeneration for even resin contact, while Fleck 5600SXT uses an older, less efficient downflow method.
• SoftPro Elite triggers regeneration based on actual water usage; Fleck runs fixed scheduled cycles regardless of demand.
• SoftPro Elite uses 4–6 lbs of salt per cycle compared to Fleck's 6–12 lbs, improving efficiency by up to 75%.
• Upflow regeneration reduces SoftPro Elite's water consumption during regeneration by approximately 64% versus the Fleck 5600SXT.
• SoftPro Elite's adjustable cycle stages offer precision control, while Fleck's predetermined regeneration schedule lacks customization flexibility.

How Upflow and Downflow Regeneration Actually Work

When your water softener regenerates, the direction brine flows through the resin tank makes a bigger difference than most people realize. The SoftPro Elite uses upflow regeneration, pushing brine from the bottom upward for even resin contact and markedly better performance.

The direction brine flows through your resin tank matters more than most homeowners ever realize.

That design alone cuts salt usage by up to 50% and water usage by 64% per cycle compared to the Fleck 5600SXT's downflow system.

The Fleck 5600SXT pushes brine top-down—an older approach that wastes both resources and potential. Its control valve typically runs on scheduled cycles, regenerating whether you need it or not.

The SoftPro Elite's metered regeneration triggers only when actual usage demands it. That's smarter, leaner, and exactly what homeowners who want mastery over their system's efficiency should expect.p>

Salt and Water Consumption:

How much does inefficiency actually cost you over time? With Fleck 5600SXT's downflow regeneration, you're burning through 6-12 lbs of salt per cycle. SoftPro Elite's upflow regeneration cuts that to just 4-6 lbs, delivering up to 75% better salt efficiency. That difference compounds fast.

Water consumption tells the same story. SoftPro Elite's regeneration technology reduces water usage by approximately 64% compared to Fleck 5600SXT's older downflow design—a measurable win for both your wallet and the environment.

We're talking roughly $220 in annual savings on salt consumption and water savings combined. Over five years, that's $1,100 back in your pocket. The operational cost gap between these two systems isn't theoretical—it's the direct result of smarter regeneration technology doing exactly what it's designed to do.

Which System Regenerates More Effectively With High Iron and Hardness?

Iron and hardness are where regeneration design really shows its true colors. When we put the SoftPro Elite against the Fleck 5600SXT water softener, the differences become clear fast.

SoftPro Elite's upflow metered regeneration pushes brine from bottom to top, saturating resin beds more evenly and tackling stubborn iron deposits that a downflow method simply struggles to clear. Add in SoftPro Elite's 10% crosslink resin—built to resist both chlorine and iron—versus Fleck's 8% resin, and you've got a system engineered for demanding water conditions.

SoftPro Elite also triggers regeneration cycles based on actual usage, keeping resin performing at its peak. Fleck's higher salt consumption per cycle doesn't translate into better iron removal or water hardness results. Design matters here.

How SoftPro Elite's Adjustable Stages Compare to Fleck's Fixed Cycles

Flexibility changes everything in a regeneration cycle, and that's where SoftPro Elite pulls ahead of the Fleck 5600SXT. While Fleck's fixed cycles run on predetermined schedules regardless of actual demand, SoftPro Elite's adjustable stages respond to real usage data—meaning smarter efficiency across every regeneration.

Here's what sets these regeneration systems apart:

1. Metered regeneration triggers SoftPro Elite's cycle only when necessary, eliminating Fleck's wasteful preset timing.
2. Upflow brine flushing distributes salt more uniformly than Fleck 5600SXT's downflow approach, reducing salt usage noticeably.
3. Customizable cycle duration lets SoftPro Elite fine-tune brining and rinsing stages, something Fleck's rigid framework simply can't match.

We're talking about a system built for mastery—where adjustable stages transform regeneration from a routine event into a precision-driven process.

Which System Costs Less to Run Over Five Years?

Smarter regeneration only matters if it saves real money—so let's follow those efficiency gains straight to the bottom line. Over five years, the SoftPro Elite's upflow metered regeneration consumes just 4–6 lbs of salt per cycle versus the Fleck 5600SXT's 6–12 lbs. That gap compounds fast across varying grain capacities and water usage patterns.p>

Wait—Fleck's five-year total looks lower. That's hardware economics at work. But as salt costs and water usage scale up, SoftPro Elite's regeneration efficiency increasingly offsets that gap for serious long-term water softener systems planning.

Frequently Asked Questions

How Long Does It Take a Fleck 5600 to Regenerate?

The Fleck 5600SXT's regeneration cycle takes 75 to 90 minutes to complete. During that window, your softened water supply pauses, so we recommend planning usage around that cycle for uninterrupted daily routines.

What Is the Best Fleck Water Softener System?

We'd recommend the Fleck 5600SXT as the best Fleck water softener—it's the most popular, reliable, and affordable option, offering customizable regeneration cycles, grain capacities up to 110,000, and a proven 5-year warranty-backed control valve.

Are Softpro Water Softeners Good?

Yes, SoftPro water softeners are excellent! They use upflow metered regeneration, saving up to 75% salt and 64% water per cycle. You'll also enjoy lifetime tank warranties, superior chlorine-resistant resin, and outstanding customer support.

What Are the Common Problems With Fleck Water Softeners?

We've seen Fleck 5600SXT owners struggle with complex programming, meter failures causing hard water breakthrough, inefficient downflow regeneration consuming excess salt, and uneven brine distribution—all of which quietly erode long-term softening performance if you're not watching closely.