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Don't Blow Air Directly onto a Pool
By Chloramine Consulting on February 19, 2020

In natatoriums, When the air gets rough, the fans get blowing.  And that's not always a good thing.

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Unintended Natatorium Design Flaws
By Eric Knight on February 16, 2020

Many natatorium design problems can be prevented if designers and contractors understand the swimmer's perspective. Swimmers see things designers don't.

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Ways to Reduce Combined Chlorine
By Chloramine Consulting on January 24, 2020

If combined chlorine levels get too high, the local health department might shut a commercial pool down. We have seen it happen before. But while pool closures are rare, high combined...

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Dehumidification Problems in Natatoriums
By Chloramine Consulting on December 17, 2019

We wrote a previous article about five common mistakes in natatorium design. Now let's talk about errors we see in the implementation and installation of pool dehumidification systems....

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An Engineer's Dilemma
By Chloramine Consulting on December 16, 2019

Think of all the rooms you have been inside. Offices, classrooms, restaurants, your bedroom, etc.. Every indoor room probably had a ventilation system of some sort, and that system was...

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ASHRAE Standard 62.1 for Indoor Swimming Pools
By Chloramine Consulting on November 24, 2019

How do mechanical engineers know what to design for specific rooms, like natatoriums? What natatorium design resources do they use as guidelines? As it turns out, there are some...

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Debunking 'Solution by Dilution' for Indoor Swimming Pools
By Chloramine Consulting on November 7, 2019

The old, obsolete approach to natatorium air quality sounded like "the solution to pollution is dilution."  In other words, introduce excess outdoor air (OA)–and exhaust more air...

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Comparing Swimming Pool Filters
By Chloramine Consulting on October 30, 2019

Does the type of swimming pool filter really matter? Are the differences between pool filters even noticable? How do they impact water quality? Does filter type have any affect on indoor...

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Pool Dehumidifiers vs. Air Conditioners
By Chloramine Consulting on September 15, 2019

Pool Dehumidifiers and air conditioners are not equal. Indoor swimming pools have variables and climate demands unlike any other type of commercial building or space. In particular, air...

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Chloramine Vapor
By Chloramine Consulting on September 10, 2019

Indoor air quality in natatoriums has many variables and moving pieces, but at the end of the day, it all boils down to one thing: how well can the natatorium's system manage chloramine...

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Understanding Source-Capture Exhaust
By Chloramine Consulting on August 31, 2019

Trichloramine, trihalomethanes and other noxious disinfection byproducts (DBPs) that off-gas from swimming pools are not your ordinary airborne contaminants. These substances–when...

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The Difference Between Return Air and Exhaust Air
By Chloramine Consulting on August 28, 2019

This is a brief article to shed light on a problem. The problem is one of semantics, but the consequences are real indeed. Too often the terms return and exhaust are used...

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