I was using it for a while. Water filters, no matter how high quality I tried, never did much of anything. They certainly did not soften my water and they lasted a very short time. So, I started using distilled water to rinse. But I no longer do that anymore. It was okay, but kind of a pain in the ***. And honestly, despite all the warnings about hard water, my hair seems fine. However, I do use citric acid conditioner rinses regularly, so that might be helping.