Fleck 48,000-Grain Water Softener Review | Model 5600 SXT

    Fleck 5600 SXT Water Softener Review

    Best Selling Softener: Fleck 5600 SXT

    •    Price: $$
    •    Flow Rate: 12 gpm
    •    Capacity: 48,000 Grains
    •    No. of People: 2-6
    •    Metered Regen:

    The Fleck 5600 SXT digital metered water softener – made in the USA – is our #1 choice when it comes to the removal of calcium and other hardness minerals from water.

    The system is ideal for small to medium-sized households with 2-6 people.

    Using the Fleck, you will notice that you won’t need that much soap anymore and your skin will feel less dry. Also, showers and toilets will stay cleaner for longer.

    The 48,000 grain system can also be used for iron treatment with a maximum clear-water iron (ferrous) concentration of 2 ppm. Red-water iron (ferric) will not be affected.

    What We Like

    First of all, the Fleck 5600 SXT is best suited for medium to very hard water.

    It applies an ion exchange process which also extends the longevity of your water using appliances and plumbing system.

    With adequate pressure (20 to 125 psi), you can expect a flow rate of about 12 gallons per minute (28 gpm at peak), enough for a whole house with multiple bathrooms.

    It’s a metered on demand device, meaning that the system measures your water usage and runs regeneration cycles as needed (or programmed) using no more salt than necessary.

    The result: Salt and water wastage is reduced, while you never run out of softened water. Is there a better way to save money?

    The digital head gives you full control over all settings and allows for a quick & easy setup. What’s more, the LCD display shows the current system status and possible error codes which makes troubleshooting a lot easier.

    During regeneration, a safety float and overflow drain in the brine tank prevent overfilling for ease of mind.

    We also like that the seller provides reliable customer support, which is just another reason why this product is among the best selling water softeners on Amazon, backed by literally hundreds of positive customer reviews.

    Fleck 5600 SXT Review

    Installation + Startup Instructions

    In order to successfully install the Fleck 5600 SXT water softener as a homeowner, all you need are some basic plumbing skills. We wouldn’t say that the setup is super easy, but at the same time, there’s also not much you have to worry about. Required time: A couple of hours.

    The instructions provided are fairly easy to read. If you get stuck, we recommend you check out some helpful videos on YouTube (or see below).

    Also, don’t hesitate to reach out to the seller. Usually, you get a prompt reply.

    Here is what you need to do:

    If a softener is not equipped with a bypass valve, we recommend you provide for one for ease of maintenance. Also, make sure to comply with local plumbing codes.

    1. Turn off the water supply.
    2. Find an indoor/warm location close to a drain to prevent air breaks and backflow.
    3. Make sure that the softener tank is level and stands securely.
    4. Cut the distributor tube flush with the top of the tank.
    5. Lubricate the distributor and tank O-ring seals with silicone. Place the main control valve on tank.
    6. Connect the Drain Line Flow Control fitting (DLFC) to the drain. Use nothing but Teflon tape as sealant.
    7. Make sure that the brine tank is level and stands securely.
    8. Add 1″ of water above the grid plate or fill to the top of the air check if no grid plate is used.
    9. Set unit in bypass mode.
    10. Turn on the main water supply. Check for leaks.
    11. Open a cold water outlet nearby and let the system flush all debris.
    12. Close the outlet.
    13. Slowly switch from bypass to service mode to let the water flow into the resin tank.
    14. Once full, re-open the cold water outlet to purge all air from the system.
    15. Connect unit to power outlet.

    Now it’s time for the system startup:

    1. Set softener into bypass mode.
    2. Fill salt into brine tank (follow instructions provided by manufacturer).
    3. Slowly open the bypass valve. Let all remaining air run down the drain line.
    4. Let the system run through a full backwash cycle. Check for leaks.


    The Package (Parts)

    • Resin tank (black), 10″ x 54″, 10 years warranty
    • Brine tank (black), 15″ x 33″, with safety float, can hold about 250 lbs of salt
    • Fleck bypass valve, 5-year warranty
    • 1″ male threaded yoke connection
    • Paddle wheel meter
    • 48,000 grain (1.5 cubic feet) high capacity resin
    • PurTest iron/hardness test kit

    Programming, Settings & Maintenance

    Thanks to a user-friendly digital controller with quick and intuitive programming, setting and maintaining the Fleck 5600 SXT is a breeze. Add new salt every once in a while – and the rest is set and forget.

    You can not only choose from 4 modes of regeneration (immediate, delayed meter, delayed time, or day of week), you can also choose to double backwash, which is a helpful feature if your water is extremely hard or has high iron content.

    The display alternates between time of day, water volume remaining and days to next regeneration.

    In the event of a power failure, the display has a built-in backup capacitor for a minimum of 48 hours of internal power. While ongoing water usage is not being monitored, the remaining water volume at the time of failure is stored to prevent a full cycle reset.

    Check out this video which walks you through every step of the programming process:

    What We Don’t Like

    Here’s what we don’t like:

    • The system does not trigger an audible alarm when running low on salt. There is a warning light, however. The good thing is that a family of four might use about 1 bag of salt per month on average. Since the brine tank can hold up to 4 bags, you should be fine checking the salt level every couple of months.
    • Some customers complained about receiving no instructions with their shipment.
    • Some parts are made from cheap plastic. We would have preferred stainless steel.

    Our Verdict

    The Fleck 5600 SXT water softener is your best bet if you struggle with medium to high levels of water hardness.

    The package provides everything you need. DIY installation and configuration are manageable. Plus the majority of customers is very happy with their purchase. 5 stars for service adds the finishing touch!

    Looking for More Fleck Softener Reviews?

    Psst. You can find more Fleck water softener reviews right here!

    comment banner

    This completes our Fleck 5600 SXT review. If you have any questions, please don’t hesitate to leave a comment below!

    Leave a Comment: