The AWT Knowledge Hub gathers water treatment knowledge published by the Association of Water Technologies and its members into one searchable place: every article of The Analyst, AWT's technical magazine, back to 1989, together with technical papers and guides from AWT committees.
⚠️ Read every article with the year it was written in mind. Laws, regulations, standards, products and technology change over time. An older article may describe requirements, practices or chemistry that are out of date or no longer apply. Each article states the year it was written. Check the information against current regulations, standards and manufacturer information before you act on it.
⚠️ Material here may conflict. The Knowledge Hub brings together AWT content written by many authors, for different audiences, over more than thirty years. Authors disagree, practice has changed, and two pages can give different answers to the same question. No single page is AWT's official position. The opinions in an article are its author's. When pages disagree, use your own professional judgement and current sources to decide.
Pages were converted from the original publications with the help of AI, and have not been proofread line by line. The aim was to carry each article across as printed, not to rewrite it. You may notice:
The words in an article are the author's as printed. Every converted article links to the original PDF at the top of the page. When something matters, check the original.
If you spot a formatting problem, such as a figure out of place, a table that did not carry over or a typo that is not in the original, use the Report it to the committee link. It is at the top of every Analyst article and at the bottom of other converted pages. It opens an email already addressed and titled with the page, so you only need to say what looks wrong. The committee will fix the formatting.
You may print an article or download its PDF for your own use and share copies within your company, keeping the author and The Analyst credit intact. Please do not republish, post publicly or sell it. For any other use, contact AWT at info@awt.org.