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What Is Reverse Osmosis?

Anyone who has sat through a high school science class may remember the term “osmosis.” This process was first described by a French scientist in 1748, who noted that water spontaneously diffused through a pig bladder into alcohol.

More than 200 years later, a modification of this process known as “reverse osmosis” allows people throughout the world to affordably convert undesirable water into water that is virtually free of health or aesthetic contaminants. Reverse osmosis systems can be found providing treated water from the kitchen counter in a private residence, to installations used in manned spacecraft.

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2014 Truck of the Month

PM has featured so many great plumbing service trucks! See plenty of them here in our Truck Of The Month Archives page. Are you proud of your truck? Go to our Truck of the Month page to find out how your service truck could be chosen!

5/28/15 2:00 pm EDT

Efficient Variable Speed Pump Selection & Control

This webinar will help to answer questions like: "How many pumps should our system use?" and "How should we sequence (stage) on additional pumps?"

Plumbing and Mechanical

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2015 April

In this month's issue of PM, check out articles about Sloan Valve, including a PM profile on Sloan Valve president and CEO Jim Allen

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The Plumbing and Mechanical Store

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2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

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Truck of the Month

Truck of the month

Are you proud of how your service truck looks? Do the graphics give people whiplash as they drive by? Have your calls increased because people remember your truck — and your company name? If so, we’d like to see it, too! Click here to find out how your service truck could be chosen as PM's Truck of the Month.