Ammonium hydroxide
Ammonium hydroxide, or ammonia water, is a common chemical in swimming pool care. It is a colorless solution of ammonia gas in water and has a pungent odor. It is…
Langelier Saturation Index Inaccuracies
The Langelier Saturation Index is the basis of swimming pool water chemistry. A simple mathematical formula determines whether the water is in balance (neither corrosive nor scale forming). Realistically, not…
Pool Acid Scarcity? Try a Borate-Bicarbonate Buffer
In the last article, we spoke about some of the alternatives to muriatic acid that are available. But how cool would it be with the current scarcity of products if…
Muriatic Acid Alternatives
I guess we can add muriatic acid to the list of pool products that are becoming impossible to find this year. The truth is it's been kind of scarce for…
How Borates in Swimming Pools Buffer pH
Borates in Swimming Pools This may very well be the 'New Craze' in swimming pool chemistry and probably comes as close to being the elusive 'Magic Pill' as anything. Though…
El mito del ácido de la piscina
[responsivevoice_button voice="Spanish Female" buttontext="Listen to Post"] ¿Puede el ácido 'Slug' reducir la alcalinidad total sin afectar el pH? La capacidad de controlar si se reduce la alcalinidad total o el…
Simon Says No To CyA!
Subject: A Topic Idea for Pool Operator Talk News The following represents the thoughts of a dedicated Pool Operator Talk News reader and do not necessarily reflect the opinions…
Lowering Total Alkalinity Without Affecting pH
[responsivevoice_button voice="UK English Male" buttontext="Listen to Post"] Can the Acid Slug Lower Total Alkalinity Without Affecting pH? The ability to control whether you lower Total Alkalinity or pH by…
1909
Minnesota Department of Health, R.N. Barr Library; Librarians Melissa Rethlefsen and Marie Jones
This 1910 photograph depicts a portable emergency hypochlorite plant that was property of the Minnesota State Board of Health; Division of Sanitation. The photo presents a general view of the original plant. This is one of a series of instructional photos used by the Minnesota Board of Health to train public health workers.
The focus of the images, and the training effort was to promote sound practices involved in protecting potable water supplies from bacterial contamination. The descriptive information accompanying this image referred to a governmental publication outlining the operating instructions for this device. The specific citation is: “Whittaker, H.A.; Hypochlorite treatment of water supplies; portable plant and field equipment for its administration Public health reports, 30:608-18, 1915.
Available Chlorine Content vs. Active Strength… Huh?
Available Chlorine Content (ACC) is perhaps the most confusing concepts to grasp. The term was created as a means of comparing the bleaching and disinfecting power of the different chlorine…
Pool Management Apps
The Dirty Swimming Pool Water Epidemic Includes Your Pool - Yes, Yours! It’s the week before Memorial Day 2018 and the Center For Disease Control releases its latest findings on…
