Fleck 64,000-Grain Water Softener Review | Model 9100 SXT

    Fleck 9100 SXT Water Softener Review

    Softened Water 24/7: Fleck 9100 SXT

    •    Price: $$$
    •    Flow Rate: 12-15 gpm
    •    Capacity: 2x 32,000 Grains
    •    No. of People: 2-6
    •    Metered Regen:

    After the Fleck 5600 SXT and the 7000 SXT, we are now going to take a look at the 9100 SXT as the last part of our Fleck water softener review series.

    What’s special about it is that it continuously provides soft water without interruption. How? It’s quite simple actually: The 9100 SXT features a dual tank system.

    As soon as the active tank has exhausted its softening capacity and goes into regen, the backup tank fills in and can immediately provide more soft water.

    While one tank is in service, the other has time to recharge its resin making the system ideal for large homes and light commercial softening.

    The valve itself is made in the USA and designed for up to 50 hardness grains per gallon. Which by standards of the Water Quality Association is considered very hard water. (Source)

    In addition, the unit can handle iron up to 2 ppm.

    Flow rate? Somewhere around 12 to 15 gallons per minute.

    By the way, each resin tank that is part of the deal has a 32,000-grain capacity.

    If you do the math, you get a total capacity of 64,000 grains – no reason to worry about calcium, magnesium and other hardness minerals anymore.

    What We Like

    As you might already know, a salt-based water softener uses salt and water for backwashing in order to recharge its resin beads that are used for the ion exchange process.

    How much salt and water is needed depends on the individual conditions and system, but expect that probably at least 50 gallons of water will go down the drain. In addition, an average softener with about 30,000 grains as in our case uses about 6 to 8 lbs. of salt per regeneration cycle.

    This is why it’s important that you opt for a metered device. Metered meaning that the system actually measures water usage and based on the hardness level calculates how much salt and water is necessary for recharge. As a result, resource consumption is reduced to a minimum – a measure that benefits the environment and your wallet.

    Fortunately, the Fleck 9100 SXT is metered. In fact, you can choose between a paddle wheel meter and a turbine meter. Both are included in the package.

    While the paddle wheel meter is already connected to the valve and has the advantage that it’s more durable, it’s also larger than the compact turbine meter. The turbine meter in turn has the disadvantage that it’s less durable and requires additional programming before use.

    All in all, the digital control valve is easy to use and allows you make all settings according to your preferences.

    Fleck 9100 SXT Review

    Installation + Startup Instructions

    This is probably the best time to tell you that the included manual is rather confusing and can be hard to follow. So better to consult the world wide web for guidance.

    If you are decent with tools and use some common sense, everything should go smoothly.

    In our opinion, prior plumbing experience is not necessarily required to set up this unit, although it would certainly help. If you’ve completed a couple of DIY projects before and you have enough time and dedication, you will be able to pull this off by yourself.

    The good news is that the resin ships loaded in the mineral tank which makes things a lot easier.

    And don’t forget to contact the seller for assistance. From our experience, phone and email support responds promptly.

    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. Always turn off the water supply as your first step.
    2. Choose a location close to a drain. This will help with air breaks and backflow issues.
    3. Check that the resin tank stands securely.
    4. Place the main control valve onto the tank.
    5. Cut the distributor tube to connect it to the top of the valve.
    6. Connect the drain line flow control fitting to the drain. Teflon tape helps to prevent leakages.
    7. Check that the brine tank stands securely.
    8. Put the system into bypass and fill the salt tank with water to about 1″ above the grid plate or to the top of the air check.
    9. Open the main water supply and check for leaks.
    10. Open any cold water outlet nearby and flush all installation debris.
    11. Close the outlet.
    12. Switch from bypass to service mode and let the mineral tank fill with water.
    13. When filled, open the cold water outlet one more time to release all air from inside the softener.
    14. Connect the valve to a power outlet.

    As for the initial system startup, follow these steps:

    1. Make sure your softener is in bypass mode.
    2. Fill the brine tank with salt (as per your manufacturer’s instructions).
    3. Slowly open the bypass valve to remove all remaining air.
    4. Start a full backwash cycle and check for leaks.

    Installation Video

    Below is the only video we could find that demonstrates how to install the Fleck 9100 SXT. Watching videos for other valve models might also be a good idea. For most softeners, the installation process is pretty similar:

    The Package (Parts)

    • 2x resin tank (almond), 10″ x 40″, made in USA
    • Brine tank (almond), 14″ x 34″, with safety float to prevent overfilling
    • Fleck bypass valve
    • Male threaded yoke connection
    • Paddle wheel + turbine meter
    • 64,000 grain (2 cubic feet) resin
    • PurTest iron & hardness test kit, already loaded

    Programming, Settings & Maintenance

    Programming the 9100 SXT is a breeze. Only 4 steps are required:

    • Set how often you want the system to regenerate (measured in days).
    • Set the regeneration time.
    • Specify your water hardness in grains per gallon.
    • Set the reserve capacity. This defines how many gallons per day you want as a reserve, so you still have softened water in the evening.

    Abundant Flow Water Systems did a great job at explaining the basic programming of all Fleck SXT valves in their video below. The video features the 2510 SXT, but in fact it works the same for all SXT models:

    What We Don’t Like

    Our only complaint is that we heard from customers that received a package where the installation manual was missing and that the instructions are hard to follow in general.

    Our Verdict

    As a dual tank system, the Fleck 9100 SXT provides a never-ending supply of softened water around the clock.

    Users have praised it as a great working unit that can compete with the big names in the industry. The low price is the icing on the cake. Double thumbs up!

    Looking for More Fleck Softener Reviews?

    You thought that was it? Nope. Find more reviews of Fleck water softeners here.

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    This completes our Fleck 9100 SXT review. If you have any questions, please don’t hesitate to leave a comment below!

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