Service Industry News

For more than 29 years, Service Industry News has served as the voice of the pool and spa service professional. A twice monthly newspaper, the staff covers featured stories on equipment installation, trouble-shooting and repair; water chemistry and business issues facing the industry; and news pertaining to the interests of the pool and spa technician.

In addition to the newspaper, we have produced three technical books used throughout the industry as training and reference guides. The Professional Pool Technicians' Guide to ChlorineGuide to Alternative Sanitizers and the Guide to pH, Alkalinity, Water Testing and Water Balance are compiled from articles that originally appeared in our newspaper.

We've also updated and republished an industry classic on pool care, Charlie Taylor's Everything You Always Wanted to Know About Pool Care. This light, easy-to understand and illustrated book has long been a part of any complete library on pool care. Now, it's also available in Spanish!

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onBalance challenges Service Industry News

By Marcelle Dibrell

As the Pool and Spa Industry continues to move forward with the contested APSP/ANSI Plastering Standards, it seems like a good time to briefly review the science that has gotten the pool plastering industry in the place it is today.

Today the industry is presented with a proposed set of standards that among other things, sets no limits on the ratio of water to cement as well as the calcium chloride concentration in pool plaster. That these limits are missing from the standards is a source of controversy among many plasterers, as well as between the research and consulting group onBalance and the National Plasterers Council.

The reason for the controversy is that many industry professionals believe that setting limits to these quantities is essential for both the plaster’s durability as well as its appearance. The posed counter argument is that there has not been enough scientific research that demonstrates what those limits should be, and thus no limits can be levied. 

This exasperates many industry professionals, whose own considerable working experience has demonstrated acceptable limitations. Furthermore, plenty of research has been conducted and plenty of standards do exist for cementitious materials, the results of which have been essentially thrown out because of those who question whether those standards can be applied to water containment vessels.

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