摘要:

The following topics are addressed in this article: benefits of leak detection; leak characteristics, and what happens when leaks enter sanitary sewers or cause washouts (cavities created by water eroding the subsoil and undermining the road surface); and types of leak detection equipment including aquaphones, geophones, sonic leak detection equipment, and leak noise correlators.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1985.tb00418.x

出版商:Wiley    

年代:1985

数据来源: WILEY

摘要:

Questions in this month's Certification Corner pertain to bacteriological examination of water and pressure in storage tanks.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1985.tb00419.x

出版商:Wiley    

年代:1985

数据来源: WILEY

摘要:

This article discusses the approach of the Boulder, Colorado, water utility to determine the conditions of its storage facilities and necessary rehabilitation. Inspection, modified refinishing of the corroded existing tank exterior coating, and refinishing of the corroded interior coating of the Devils's Thumb tank are described. When inspection of the Kohler and Maxwell reservoirs indicated that punctured blisters and bulges in the asphalt liners were allowing water to migrate between the liner and the original floor slab, potential alternatives such as rigid liners, flexible liners, or no liners were evaluated. It was decided to postpone new linings since current annual costs associated with leakage and maintaining the existing liner did not justify installing new liners. Instead, regular cleaning and physical inspections will be continued and leakage tests will be conducted annually. Major deterioration of the overflow structure of the Chautauqua reservoir was observed during an inspection, and options for installing a liner were evaluated. Instead of lining the reservoir, maintenance work was determined to be more cost effective.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1985.tb00420.x

出版商:Wiley    

年代:1985

数据来源: WILEY

摘要:

This article describes the construction of a hand protector constructed from high‐density rubber used to prevent injury when using flaring tools.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1985.tb00422.x

出版商:Wiley    

年代:1985

数据来源: WILEY