Utah State University study validates the performance of PVC pipe used in water networks
The Utah State University (USU) Buried Structures Laboratory has published a comprehensive study on PVC pipe excavations, testing and lifecycle analysis. USU, located in Logan, Utah, is also home to the Utah Water Research Laboratory and has contributed to water and wastewater research internationally for more than 50 years.
NSF Intl. issues WaterMark Certification to Simon Co. for its HIM Safe polyethylene pipe and fittings
NSF Intl. has certified Simon Co.’s HIM Safe polyethylene (PE) pipe and fittings to the Australian WaterMark Certification Scheme for plumbing, water treatment and distribution products. Simon Co.’s products are the first PE pipe and fitting products to earn WaterMark certification from NSF Intl., and Simon Co. can now use the WaterMark logo on approved products and distribute to the Australian, Malaysian and New Zealand markets.
When choosing pipe or fittings for any water application, the material options can be overwhelming. This was not always the case, though: For centuries, most pipe was made of lead or wood. In fact, the word plumbing is derived from the Latin word for lead, plumbum. Although the mechanical properties of lead are advantageous for making pipe, its toxicity is an issue. Wood pipe, on the other hand, is nontoxic, but susceptible to leaks. And because wood is soft, people could easily drill into the pipe and steal water.
Evaluating the strengths and weaknesses of plastic pipe varieties
Recently I learned that fire hydrants use a color-coding system to indicate the flow rate a hydrant can deliver. Hydrants with light blue-coated bonnets and nozzles deliver the fastest flow rates, 1,500 gal per minute (gpm) or greater, while hydrants with red-coated bonnets and nozzles deliver 499 gpm or less. Coatings are amazing products—not only are they aesthetically pleasing, they also provide surface protection or improvement and can convey important information to the end user.
Limit coating toxicity with proper application
Recently, the U.S. Environmental Protection Agency (EPA) announced it had worked with three New Jersey school districts to successfully lower lead levels in their drinking water. Testing in 2010 and 2011 found elevated lead levels in approximately 8% of the outlets it tested at the Atlantic City, Union City and Weehawken school districts. The districts resolved the problem through a variety of methods, from filtration to replacing fixtures to simply shutting off those outlets. The latest round of testing showed that lead levels were within acceptable EPA limits.
In July 2011, the California Department of Toxic Substance Control (DTSC) issued its first annual report on plumbing products sampled and tested for lead concentrations in 2010. All drinking water faucets that were sampled and tested were reported to comply with the state’s new low-lead law.
California checks for compliance with its first round of product testing
Recently I purchased a food processor. Before using it for the first time, I read the 18-page instruction booklet and watched a 45-minute DVD. I asked myself, “Why do I put so much time and effort into researching how to use a relatively simple device?” The answer came to me immediately: I have been in the product certification business for almost eight years, primarily dealing with NSF/ANSI 61 certifications.
Checking connector certifications to ensure proper end use
Worldwide, countless fluid carrying systems in operation today employ highly engineered plastics to provide the essential elements of any fluid system, be it residential, retail or commercial. These elements include fittings, seals, piping and tubing—all of which today can be engineered from plastics due to considerable advances in materials technology and manufacturing processes.
Plastic components provide flexibility
With the compliance deadline approaching for California’s AB 1953, Stephanie Harris, managing editor of Water Quality Products, recently spoke with NSF’s technical manager of water distribution systems certification program, Pete Greiner, to gain insight on the new law and Annex G to NSF/ANSI Standard 61.
Industry Insight: Pete Greiner