These devices are designed to remove impurities from the water supply before it enters the appliance. Sediment, chlorine, rust, and other contaminants can negatively impact washing machine performance and longevity, as well as the cleanliness and lifespan of clothes. Installing such a device can involve connecting it to the water supply line that feeds the washing machine, typically located at the back of the appliance.
Cleaner water leads to brighter, fresher laundry, as it prevents contaminants from settling into fabric fibers. These devices can also extend the life of a washing machine by protecting its internal components from scale buildup and corrosion. Over time, this preventative measure can result in significant cost savings on repairs or replacement, while also improving the overall efficiency of the appliance. Historically, concerns about hard water led to the development of various filtration solutions, culminating in the specialized devices available today.