Shows the year when the current water softener was first put in place.
The installation year helps potential buyers understand the water softener's age and condition. Most water softeners have a typical lifespan of 10-15 years, and knowing the installation year can indicate whether the system may need replacement or repairs soon.
| Median | Mean | Mode |
|---|---|---|
2019 | 2018.663 | 2020 |
| Location | Median | Mean | Mode |
|---|---|---|---|
| Unknown | 2019 | 2018.663 | 2020 |