In the May 2011 issue of this magazine, I wrote a column titled, “Is PVC an acceptable vent material for...

I recently inspected the mechanical systems in student housing at a Midwest university. The school had hundreds of apartments in...

Plumbing design professionals and contractors are faced with many challenges when designing, installing or maintaining domestic hot water systems. Two...

Every year, thousands of people suffer serious thermal shock and/or scalding injuries in showers or combination tub/shower fixtures. Tens of...

Last month’s flow test was conducted as part of the fire protection engineer’s sprinkler design. Scenario 1: The flow test...

Modcon boilers are getting mighty efficient these days. Where does the efficiency come from? Boiler manufacturers are gaining this extra...

Washington, D.C., is not exactly the Arctic Circle, but we have installed a surprising number of snowmelt systems over the...

The air and dirt found in today’s piping systems have not changed all that much over the years. What has...

Water has the unfortunate quality of being heavier than air. In fact, it weighs 62.4 pounds per cubic foot. This...

When starting a fire pump design, the most important item to consider is the water supply. If you are utilizing...