Pentair Fleck 5600SXT 48000 Grain Water Softener – Extends the life of your home appliances!

Water is crucial for our living naturally in most places water is hard in nature. Those white scale deposits caused by hard water damage pipings, appliances, and even our skin. Hard water potentially increases our living expenses by reducing the efficiency and condition of pipings and appliances. Research shows that an average family spends $500 per annum in repair and replacing appliances damaged by hard water. Instead, you can better buy a Pentair Fleck water softener 5600 SXT that costs around $600. Before buying a water softener for your home, continue to read this Pentair WS48-56SXT review that is given based on our personal experience.

Pentair Industries Inc is a pioneer in water softening technologies, and they also manufacture a lot of other products. One of their best products is Pentair WS48-56SXT10 Fleck water softener; it works on a simple ion exchange process. Also, it has a 10% cross-linked resin. Soft water produced from this unit reduces scale formation and improves the life of your appliances.

Pentair WS48-56SXT Review for 2023

1. Design

Pentair 5600 water softener has a black color standard 14×33 brine tank, mineral tank, bypass valve, and adapter. The durable poly glass circular mineral tank has a 1.5 cubic feet resin capacity. Corrosion-resistant fiber-reinforced polymers of Pentair brine tank blocks UV rays that can react with salt and form unwanted chemical by-products. This brine tank is square-shaped and can hold 250 lbs of salt. The unit weighs around 130 pounds, and maximum pressure is 125psi. This water softener requires salt for regeneration.

While choosing salt, pick low impurity salts because a large amount of insoluble matter can lead to malfunctioning of the tank, and you may also need to clean your brine tank very often. Fleck whole house water filtration system 5600SXT’s controller is programmable and automatically regenerates when needed. This controller also meters water consumption using a paddlewheel flow meter.

2. Capacity

In water softeners, as the degree of cross-linking increases, bead size decreases, and the capacity increases. Water softener Pentair has very porous 48,000 beads and a 10% cross-linked resin structure. Its service flow rate is 10 gallons of water per minute and can also hold a backup of 7 gallons per minute. This backup water can be used when the water softening system regenerates.

Pentair whole house water softener is best suited for mid-sized families with a minimum of 5 people and can serve up to 3 bathrooms. Fleck 5600SXT 48,000 grain water softening system resin beads are best suited for moderately hard water and keep soft water flowing abundantly from our taps.

3. Technology

In general water softeners, use an ion exchange process to remove minerals from hard water and convert it into soft water. The negatively charged resin attracts positively charged hardness causing ions like calcium and magnesium, and produces soft water. Hard water from our water line goes into the resin tank and reacts with the resin inside. After the reaction, softened water comes out of the resin tank that flows into our taps.

When there is no more resin available for reaction, brine water from the brine tank enters the resin tank and washes off ions bonded with resin. This process is called regeneration, and the brine water carrying hardness causing ions goes into the drain. This regeneration cycle takes about 2 hours, and during this time, we can use backup softened water.

4. Resin

Resin determines the performance, life, and other factors of a water softener. Polystyrene type gel resin is used in the most water softener. The resin is insoluble in concentrated acids and alkalis and can withstand temperatures up to 120˚ C. In Pentair Fleck water softener 5600SXT, Polystyrene, and DVB are the constructional elements of its resin. DVB is cross-linked with Polystyrene to form grains, the percentage of cross-linking ranges from 5-20%.

With the increase in cross-linking percentage, grains become more porous and attract more ions. Pentair’s 10% cross-linked resin has another advantage that it can handle iron water, but the iron content must be less than 5ppm. If the iron level of water is more than 5ppm, it is better to install a pre-iron filter. The performance and capacity of 8% cross-linked resin and 10% cross-linked resin were just the same when tested, but 10% cross-linked resin can even last ten times longer.

5. Warranty

While buying any product, along with its features and price, we always check with the warranty of that product. We also consider the product’s warranty as a minimum guarantee given by the manufacturer on its life. The product’s warranty must cover important parts and must be a little longer.

So, important parts of Pentair Fleck 5600 SXT 48000 grain water softener are resin and Fleck valve. Company offers a 5-years warranty on its fleck valve, and the resin tank also has a 10-years warranty period. If any repairs or damage occurs to the Fleck valve or resin tank, support team will repair or replace any damaged parts under terms and conditions.


Specifications of Fleck 5600SXT 48,000 Grain Water Softener

  • Manufacturer : Pentair
  • Item model number : WS48-56sxt10
  • Product Dimensions : 10 x 10 x 54 inches
  • Item Weight : 130 pounds
  • Size : 48,000
  • Color : Black
  • Shape : Circular
  • Flow Rate : 14 Gallons Per Minute
  • Water Consumption : 3.5 GPM


Is the bypass valve of Fleck 5600SXT 48 000 grain water softener metal or plastic?

The bypass valve of Pentair water softener 5600SXT is Noryl plastic; this can last longer than a stainless steel bypass. The Center distance between two valves is 2.125″ and has 1″ male threaded yokes. But 3/4″ valve yoke is most commonly used for plumbing, and on request, the manufacturer can replace it with a 3/4″ valve yoke. After applying the silicone lube provided to valve yokes, we have to connect them to water lines.

What are the dimensions of the resin tank of Pentair Fleck 5600SXT 48000 grain water softener?

The resin tank of Pentair Fleck SXT has a height of 54 inches and a diameter of 10 inches. The resin tank comes with 1.5 cubic feet of 10% cross-linked resin pre-filled.

How many gallons per minute output for Pentair WS48-56SXT10?

The output of Pentair Fleck water softener 5600 SXT is 75 gallons per minute, and the peak flow rate is 14 gallons per minute. However, the service flow rate was 10gpm, and the flow rate can be monitored using the meter. Pentair consumes around 2.5 gallons of water per minute. This water softener uses 50-60 gallons of water for regeneration.

Final Verdict

If you are getting troubled with hard water, then you must try Pentair WS48-56SXT10 Fleck water softener 48k black. It supplies soft water for your household all the time. Though it is a bit difficult to install, this model has good features that other water softeners lack. Smart regeneration and digitized control system make Pentair superior to other water softeners. This water softener doesn’t require much maintenance once installed but don’t forget to refill salt into the brine tank. The long-lasting resin is insoluble in alkalis. You can also use it for your well water. Pentair WS48-Fleck 5600SXT is great for moderately hard water. If you are new to water softeners or you want to replace your old softeners, then find this best water softener for sale on Amazon. Hope our Pentair WS48-56SXT review helped you to choose the right one for your whole house.

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