Recent Review: service was scheduled. SWS showed up as scheduled, on time & completed the work in a timely fashion. billing was prompt, clear & as discussed. the corrective effects on my water were immediate & amazing! the system continues to operate excellently. everybody I have referred to SWS calls to tell me how pleased they are to finally find a water treatment company that is able to diagnose the issue, repair/replace & actually do this at a reasonable price! AND, you are able to get a real, live, knowledgeable person on the phone! I have personally been using SWS for all my water treatment needs - commercial & residential - since 2004 without EVER having an issue! cost, performance, replacement or warranty, NOT ONE SINGLE ISSUE, EVER!