White paper explores low-flow toilets’ impact on drain lines, clogs

Building conditions must be factored into any specification or application of plumbing systems to assure proper performance, according to a new white paper from Sloan Valve Company.

The document evaluates the findings of the PERC I (The Plumbing Efficiency Research Coalition) study: “Down the Drain.” The PERC I study sought to learn how drain lines react to the use of low-flow, high-efficiency toilets. It found that certain variables: toilet paper—along with the pipe slope and flush volume—are key variables in determining whether drain lines might be predisposed to clog.

The white paper reviews the results in relationship to real-life building conditions in the United States. Sloan strongly recommends an onsite visit by a plumbing engineer as part of any retrofit project. Such a hands-on survey of the building's entire plumbing system can help identify potential issues and affect the outcome for the best possible solutions, which may not support ultra-low water flows.

The white paper aims to help determine if low-flow flushometers are suited for particular restroom environments.

Jacobs Engineering Group Inc. announced that it has acquired KlingStubbins. Officials did not disclose the terms of the agreement. Jacobs' acquisition of KlingStubbins, which has approximately 500 employees located in the United States and Asia, particularly enhances the Company's capabilities in design. KlingStubbins provides professional services in planning, architecture, engineering and interiors.

| Nov 1, 2011

Perkins Eastman opens office in San Francisco

Located at 23 Geary Street in the One Kearny building, the 8,100 sf office will accommodate a growing staff of 45.

| Nov 1, 2011

Sasaki expands national sports design studio

Sasaki has also added Stephen Sefton to the sports design studio as senior associate.

| Nov 1, 2011

Holcim awards winners for North America announced

A socio-architectural project to create regional food-gathering nodes and a logistics network in Canada's high arctic territory won the top prize for North America of $100,000.