Fleck 9100 SXT Digital Control Twin Demand Water Softener

Soft Water Overview

System Operation

The Fleck 9100 SXT water softener is a configurable twin tank system built for 24/7 soft water delivery in large homes, multi-bathroom households, light commercial settings, and business applications with high daily demand, and it is available as part of a broader selection of residential water softeners. It uses the Fleck 9100 SXT digital control valve with an LCD interface and a twin tank system design that lets one tank regenerate while the other stays in service, so hard water continues passing through resin to become soft without interruption during regeneration. Regeneration starts when the resin is saturated with hard water ions, and brine water rinses those hard water ions off the resin to restore softening capacity.

Efficiency and Savings

For buyers comparing capacity, control options, and long-term operating value, this page explains the Fleck 9100 SXT’s core features, twin tank configuration options, digital control technology, installation considerations, capacity comparisons, and real-world performance feedback. Shoppers can decide whether this tank system makes sense by comparing their water hardness, daily gallons used, and whether week-to-week regeneration downtime from a standard single-tank unit would be a problem in their home or business. Based on actual water use through the day, the system uses 100% of the active tank's capacity before switching, which can save about 10% to 15% on salt, water, and money versus single-tank alternatives while helping protect plumbing, improve water quality, and reduce ongoing maintenance costs over time. It is often overkill for small households with moderate water usage.

Installation and Components

The system includes:

• 1 inch stainless steel bypass

• ResinTech CGS high capacity water softening resin

• 230 lb brine tank assembly with cover

• Salt grid base

• Float tube

• Brine hose

• Connection pieces

It integrates with other water treatment system products.

Durability and Warranty

The durable valve body is made from fiber-reinforced polymer to resist corrosion, and Fleck valves are widely recognized for reliability and serviceability, with the Fleck 9100 valve rated to last for 27 years of daily use. Water with iron or higher hardness may affect sizing and performance expectations. Tank size options are available on this configurable product. The Fleck 9100 SXT is backed by warranties on the digital control valve and mineral tanks.