John E. Martin is an industry consultant and former vice president of national account sales for Anvil International. He can be reached at jemassociates1944@gmail.com or 303-588-9806.

The roots of the Online Piping and Usage Specification resource

The original hard copy “guideline” manual would eventually become the Online Piping and Usage Specification resource, or OPUS.

John E. Martin

March 29, 2018

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MCAA’s Online Piping and Usage Specification resource was designed by tradespeople, for tradespeople.

Plumbing and Mechanical

2020 August

The August 2020 issue of Plumbing & Mechanical celebrates the 2020 Mechanical Contractor of the Year, Mechanical Inc. This issue also looks at the advantages of circulator pumps as well as new categories of outdoor faucets.

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John E. Martin

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The roots of the Online Piping and Usage Specification resource

Plumbing and Mechanical

2020 August