Carlos did a great occupation of diagnosing a problem having a drain inside a bathtub. Explained the situation and proposed an answer. We'll use James' Plumbing to setup a water conditioner and correcting the drain issue.Addendum: Carlos has long been back a lot of situations to deal with guarantee issues https://waterpressureissues82590.win-blog.com/15362676/the-best-side-of-backflow-prevention