Dual tank water softener systems are designed to eliminate downtime caused by the regeneration cycle. It’s normal for water softeners to recharge or regenerate. At this time, it’s not connected to the water system, basically meaning you cannot drink soft water during the regeneration process. This is why many water softening system’s manufacturers recommend automating the regeneration process to work during the night. An alternative is to use a dual tank water softener. One tank of the system works while the other regenerates. This eliminates downtime. Apart from continuous water, the system has another major advantage. It’s smaller than a one-tank water softening system. Since it regenerates all the time it doesn’t need to be as large as a one-tank water softener. This process is automatic. The best systems feature a programmable valve and meter. These control both tanks so that the user doesn’t have to manually input regeneration cycles.