Nelsen Water Solutions Fleck 5600 Water Softeners

Engineered to Last – The 5600 control valves have been engineered and internally tested to exceed NSF/ANSI 44 standards. The key to the exceptional quality of the Pentair Fleck 5600 control valve is the proven piston-seal-spacer technology. Featuring a hydraulically balanced, Teflon-coated piston with a seal and spacer to effectively control service flow and regeneration, the Pentair Fleck 5600 valve is simply one of the most reliable valves available.


Choose between the SXT Electronic control or a mechanical timer control that initiates regeneration on a preset time basis or a more efficient meter system that measures the water used. Because meter systems control regeneration based on water volume instead of time, you can save significant amounts of water and electricity.

The state-of-the-art 5600 SXT electronic meter control provides your home with conditioned water based on your family’s water usage, regenerating only when needed. This environment-friendly control ensures you years of soft water, saving you money, water, and salt. A large backlit LCD display alternates between the time of day, soft water remaining, or days to regeneration.

The 5600 Meter Control – a time-tested 5600 mechanical meter control features an economical water meter engineered to monitor your family’s daily water usage, regenerating your system only when needed.  Pentair Fleck’s time-tested mechanical meter will provide years of trouble-free service. 

The Economic 5600 time clock control is as simple to set as turning a dial.


Benefits of a Nelsen Water Solutions System

In the Bathroom

Your soap and shampoo will lather better. Your hair and skin will feel noticeably cleaner, softer, and not as dry. Additionally, there will be no soap scum or mineral deposits to clean off sinks, showers, tubs, and toilets.

In the Kitchen

Dishes will clean up more easily and be spot-free, without the gray film glass gets when etched by mineral-laden wear. Plus, hands will feel softer and look better.

In the Laundry

Clothes will be softer, cleaner, and brighter and last longer. Using soft water and pure soap products increases the life of clothing, towels, and linens by up to 33%. Without hard water service issues, washing machines will last longer, too.

Plumbing and Appliances

Appliances that use water will last longer and run better. Why? Because water heaters, washing machines, and dishwashers using hard water can wear out 30% faster.


Key Features

  • Controls available in Mechanical Time Clock or Meter and Electronic Time Clock or Meter
  • Fully adjustable 3 or 5 cycle control for an efficient and reliable water treatment system
  • Water use is monitored for peak efficiency and regenerates only when necessary saving salt and water (metered controls only)
  • Time-tested, hydraulically-balanced piston for service and regeneration
  • Simple diagnostics and design provide for easy maintenance

  • High quality, chlorine resistant media bed, for years of continuous service featuring a uniform bead size and distribution for optimum flow rates
  • Gravel support bed shown used on larger systems

  • Basket style distribution system delivers evenly distributed and high quality flows

  • High quality, durable construction brine (salt) tank
  • Safety float system helps prevent overflow of the brine tank

Additional Resources



Brine Tank - Additional styles, colors, and sizes available.

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Enpress Vortech™ Plate Style Tank - Vortech creates better backwashing and cleaning action of media and shorter backwashing requirements resulting in water savings.

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Tank Jackets - Help reduce excess condensation that can occur in humid locations, available in black neoprene or high-gloss chrome or colored plastic with microfoam insulation.  

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SXT Control - An electronic model with an LCD display with 48 hours of internal backup power.

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5600 Series Residential Single Softener System Specifications
Grains Capacity 32,000 48,000 64,000 80,000
Grains Capacity1/Capacity2 30K/24K 45K/36K 60K/48K 75K/60K
Cubic Ft. Media per Tank 1 1.5 2 2.5
Pounds Media per Tank 50 75 100 125
Service Flow Rate, GPM* 9 12 13 15
Approx. Dimensions 33"W x 57"H x 19"D 34"W x 63"H x 19"D 36"W x 57"H x 19"D 37"W x 63"H x 19"D
Approx. Weight 98 Lbs. 124 Lbs. 152 Lbs. 219 Lbs.
Mineral Tank Size 9" x 48" 10" x 54" 12" x 48" 13" x 54"
Backwash Flow3 2 2.4 3.5 4

(1) At 15 pounds per cubic foot = 30,000 Gr. C.F. (2) At 9 pounds per cubic foot = 24,000 Gr. C.F. (3) Backwash flow rate (GPM) with standard basket distributor
*Note - due to varying water conditions, water pressures and assembly materials the service flow rate should be used only as a guideline.
The standard resin is certified, however system media may vary based on water analysis to optimally treat specific water problems.
* Due to varying water conditions, water pressures, and assembly materials, the service flow should only be used as a guideline • Capacities are based on resin manufacturer’s data • All flow rates are in Gallons Per Minute • All sizes and space required are in inches

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