❌ The brine tank plus the 40” tall mineral tank will take up about 4-6 square feet of floor space. It won’t fit in a small utility closet. ❌ Installation Weight: A “full” tank weighs over 100 lbs when filled with wet resin. You’ll need a dolly and two people to move it. ❌ Cost: Expect to pay $800–$1,500 for a quality Fleck-based 40278 full system (cheaper off-brands exist, but avoid them). ❌ Overkill for Small Homes: If you have 2 people and moderately hard water, this unit would be inefficient (salt can harden into a bridge between regenerations).
If your water suddenly feels hard again and the display says "FULL," here is how to fix it.
A water softener is a device that removes calcium and magnesium ions from water through a process called ion exchange. The device consists of a resin tank filled with resin beads, which attract and hold onto the calcium and magnesium ions. As hard water passes through the resin tank, the resin beads exchange sodium or potassium ions for the calcium and magnesium ions, softening the water. 40278 water softener full
If the display shows "FULL" alongside a blinking icon or an alert tone, it means the softener has reached its maximum calculated capacity (48,000 grains used) and requires an immediate cleaning cycle.
This is not a unit for a studio apartment. The 40278 is a designed for: ❌ The brine tank plus the 40” tall
The average lifespan of a water softener resin is 10-15 years. If you have had your 40278 for over a decade and you are constantly seeing "FULL" regeneration errors, the resin beads may be dead. You can either buy a resin replacement kit ($150) or replace the whole unit.
Locate the Venturi assembly (usually a cap on the side of the control valve). Unscrew it and take out the internal screen, gasket, and nozzle. Soak them in warm water or a mild acid cleaner (like Iron Out) to dissolve deposits. Reassemble it and run a manual regeneration. You’ll need a dolly and two people to move it
Debris prevents the system from sucking brine out of the tank during regeneration.