Nelsen Water Solutions Fleck 2510 Water Softeners

The Pentair Fleck 2510 control valves are engineered to withstand 10,000 cycles. The key to the exceptional quality of the Pentair Fleck 2510 control valve is the proven piston-seal-spacer technology. Featuring a hydraulically balanced, Teflon-coated piston with a seal and spacer to control service flow and regeneration effectively, the Pentair Fleck 2510 valve is simply one of the most reliable valves available.

Your choice of a mechanical timer that initiates regeneration on a preset day basis or a more efficient meter system that measures the water used. Because meter systems control regeneration based on water volume instead of days, you can save significant amounts of water and electricity. The electronic SXT controllers give the benefits of accurate metering with the safety of a day’s override to ensure a clean, long-lasting system.

The State-Of-The-Art 2510 SXT Electronic Meter Control provides your home with conditioned water based on your family’s water usage, regenerating only when needed. This control ensures you years of soft water, saving you money, water, and regenerant.

The Time-Tested 2510 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 2510 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 getting 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)
  • 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
  • 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.

Learn More

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


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.  


Nelsen Water Solutions Fleck 2510 Water Softener Specifications
Grains Capacity 24,000 32,000 40,000 48,000 64,000 80,000 110,000
Grains Capacity (1) 22,500 30,000 37,000 45,000 60,000 75,000 105,000
Grains Capacity (2) 18,000 24,000 30,000 36,000 48,000 60,000 84,000
Cu. Ft. of Media 0.75 1 1.25 1.5 2 2.5 3.5
Pounds of Media 38 50 63 75 100 125 175
Service Flow Rate* 7 9 10 12 13 18 22
Overall Height 53" 57" 63" 63" 57" 63" 74"
Floor Space Req. 32" x 19" 33" x 19" 34" x 19" 34" x 19" 36" x 19" 37" x 19" 38" x 19"
Approx. Weight 83 lbs. 98 lbs. 110 lbs. 124 lbs. 152 lbs. 219 lbs. 290lbs.

(1) Salt at 15 lbs. per cubic foot = 30,000 grains/cubic foot

(2) Salt at 9 lbs. per cubic foot = 24,000 grains/cubic foot

* 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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