Hello. Welcome to the Clean Water Made Easy Q & A. My name is Gerry Bulfin. I’m a WQA-Certified Master Water Specialist and Water Treatment Contractor. Every week on our main podcast we delve deeper into the various well water treatment systems and problems. I also do these quick Q & A episodes because we get a lot of phone calls, emails, and chats every day and we get a lot of interesting great questions. Some are really good to share with others. Today, we received an email from Jim who wrote: “We got blue stains on our sinks and bathtub and a neighbor told me to use a phosphate filter. I understand our well water is acidic and I’m wondering how the phosphate works and will it fix the acid water at the same time it’s helping my pipes.” Okay, Jim, that is a very good question and phosphate is often used for corrosion. It doesn’t do anything for the acidity but the most common way we use phosphate for homes is in a crystal form. So it’s hexametaphosphate, actually, it’s sodi...