Because these units require a consistent flow to clear minerals, you must ensure your local water pressure meets the manufacturer’s requirements and that your supply does not contain high levels of iron or manganese which can foul the resin.
The AFWFilters Fleck 5600sxt 64,000 Grain Water Softener features a 2 cu. ft. resin volume and a high-capacity resin bed. We selected this model for our comparison because it utilizes the Fleck 5600sxt, a standard for digital control heads, to manage its 64,000 grain capacity. For a grain water softener, verifying your drainage flow rate is critical because if the system cannot evacuate water quickly enough during a cycle, the unit will fail to clean itself and stop softening your water. You must also confirm that your plumbing—whether PVC, PEX, or copper—matches the thread sizes on the inlet and outlet ports to avoid leaks or the need for expensive adapters during the installation by a qualified professional.
Pre-Installation Checklist for the Fleck 5600sxt
Verify these site requirements before ordering the system to ensure a successful installation:
- Measure the physical footprint of the almond or black tank plus the swing radius needed for the bypass valve.
- Check that your local water supply is free of manganese and iron; if these are present, you may need a pre-filter to prevent resin fouling.
- Verify that the dedicated drain line can handle the volume of water discharged during a full regeneration cycle.
- Confirm your home’s incoming water pressure is sufficient to provide even distribution across the resin bed.
Comparing the Fleck 5600sxt and Other Softening Systems
The Fleck 5600sxt is a digital water treatment system designed to remove minerals from your home’s water supply. This specific model is ideal for users who need a high-capacity, reliable unit with a standard digital head for predictable maintenance. If you have a very large estate or high-flow irrigation requirements that exceed 72,000 grains, you should look for a system with a higher grain capacity instead. Conversely, if you have a small household with very low water usage, a smaller unit might offer a more compact footprint and lower cost than this 64,000-grain model.
If you have limited floor area, see the best whole house water softener for small spaces to find a compact unit.
If you need a high-capacity system with a reliable digital control head for a standard to large household, the AFWFilters Fleck 5600sxt 64,000 Grain Water Softener is the right choice for your property.
AFWFilters Fleck 5600sxt 64,000 Grain Water Softener
Homeowners on a budget can find the best whole house water softener for large homes under $1000 in our latest roundup.
$769 price checked August 2026
Where to go next in our Grain Water Softener coverage
- The Grain Water Softeners That Work Best for Hard Water
- Which Whole House Water Softener Is Best for Small Spaces?
- Best Water Softeners for High Flow Households
- Water Softeners with Sediment Filters Compared
- Choosing the Best Water Softener with Carbon Filter
- The Grain Water Softeners That Work Best for Beginners
