Ray Calloway
Water treatment expert · Technical reviewer
Twelve years maintaining process water systems in food manufacturing, now an independent residential maintenance tech in Central Texas. Ray reviews the technical analysis published on The Home Water Lab before it goes live.
Ray Calloway spent twelve years as an industrial maintenance technician in a food manufacturing plant, where the process water systems were part of his responsibility. Plant water is unforgiving: the equipment runs continuously, the water chemistry is measured rather than guessed at, and a scaling problem shows up as downtime long before anyone calls it a plumbing issue. In 2021 he left the plant and went independent, doing residential maintenance.
What pushed him toward water treatment specifically was his own house. Central Texas groundwater runs through limestone, and his tap water tests at 18 grains per gallon, which is well past the point the USGS classifies as very hard. He lost two water heaters in six years. He bought a softener quickly, the way most homeowners do, and it was undersized for his hardness and his household. So he took it apart, ran the numbers properly, and worked out what he should have bought in the first place.
Then he went looking for the guide that would have saved him the mistake, and found that most of what ranks online is a product sheet in disguise: specifications copied from the manufacturer, no arithmetic, no sizing, and no mention of what the system fails to do. That gap is the reason this site exists.
Ray does not write the articles. The Home Water Lab Team researches and writes them, and Ray reads the technical substance before publication. His review covers the parts where a mistake actually costs the reader money: whether a softener is sized correctly for a household's hardness and water use, whether a spec quoted from a manufacturer sheet means what the article says it means, whether a certification claim matches what the product is genuinely certified for, and whether an installation described on the page is realistic in a typical American home.
When Ray disagrees with a recommendation, the article changes or the claim comes out. Where a question has no settled answer, such as two manufacturer documents that contradict each other or a figure that depends entirely on local water chemistry, the article says so rather than picking a side.
What Ray reviews
A technical review is not a proofread. These are the checks that happen before an article goes live.
- Softener sizing: hardness, household size, grain capacity and regeneration frequency
- Manufacturer specs: service flow rates, micron ratings, media life, warranty terms
- Certification claims: what an NSF/ANSI or WQA listing actually covers
- Well water sequencing: iron, sulfur, sediment and pH, in the right order
- Installation reality: bypass, drain, power, space and plumbing constraints
- Cost of ownership assumptions: salt, media, filters and replacement intervals
Articles reviewed by Ray
No article currently carries Ray Calloway's technical review. Reviewed articles are listed here as they are published, and the byline of an article only names a reviewer once that review has actually happened.
Same numbers, on video
Most comparisons published here also run on the Home Water Lab channel, same sources, same dated prices.