I had one but after 2 years of use it stayed disconnected. WAY too much work. Causes pressure issues, clogs fast, etc. 15 years later, no flow issues around the house. Washer and shower heads ok. Hot water heater meets avg life expectancy. No ring around the toilet bowl but the inside where the float resides is muddy. So I guess it doesn't build up in high flow areas like the pipes as I had feared.