摘要:

The Great Falls Montana Water Plant experienced problems with its filters, which were found to be air bound and clogged by mud balls. In order to remedy the situation, several dual sand and anthracite coal filters were installed. The results were longer filter runs and a savings in washwater.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1976.tb00902.x

出版商:Wiley    

年代:1976

数据来源: WILEY

摘要:

With regard to the PVC pipe‐tapping machine featured in the Opflow May 1976 portion of “Gimmicks and Gadgets,” the reader suggests that another brand of shell cutter has the additional advantages of cleaner cuts and the ability to remove PVC plugs consistently.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1976.tb00903.x

出版商:Wiley    

年代:1976

数据来源: WILEY

摘要:

Automation and its integration into an existing water supply system are the topics of this article. Automated system operation, design, and maintenance are covered.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1976.tb00904.x

出版商:Wiley    

年代:1976

数据来源: WILEY

摘要:

This article describes an accident in which a discharge hose stretched across traffic lanes became lodged on the undercarriage of a passing semi‐trailer‐tractor, with the eventual result that a portable pump was jerked through the air and wedged under a pickup truck's right rear wheel. Although no one was hurt, the potential for serious injuries emphasizes the need for proper traffic control and guidance.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1976.tb00905.x

出版商:Wiley    

年代:1976

数据来源: WILEY