摘要:

This article describes the innovative approach to worker safety taken by North Miami Beach Public Utilities in Miami, Florida. The program consists of “Safety Talk” posters featuring ideas submitted by Public Utilities personnel, which are distributed and discussed by fellow workers.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00643.x

出版商:Wiley    

年代:1980

数据来源: WILEY

摘要:

This two‐part article is the second of several to be chosen for publication from over 30 papers presented at the first Distribution System Symposium (Feb. 24–27, 1980) in Los Angeles.OpFlowpresents this and subsequent articles as examples of the high quality of material presented at the DSS.Part I presented last month (May) pointed out why the interest in leak detection has risen dramatically in the past few years, and noted that the approaches to the problem clustered around two basic methods of leak detection: (1) listening and (2) a combination of flow measurements and listening that is sometimes referred to as a “water audit.” The listening method, equipment, and procedure were discussed thoroughly in Part I.Part II of the article covers the audit method, and then gives advantages and disadvantages of both methods, and summarizes both Parts I and II.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00644.x

出版商:Wiley    

年代:1980

数据来源: WILEY

摘要:

This portion of “Math for Operators” explains how decimals are related to fractions and percent. Decimal places and using decimals for addition, subtraction, multiplication, and division are covered. Significant figures are defined, and examples of how they are used are presented.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00645.x

出版商:Wiley    

年代:1980

数据来源: WILEY

摘要:

This month's “Certification Corner” presents questions on the effects of aeration on well water, the use of color‐producing chemicals in the residual chlorine test, sedimentation basin effluent weirs, coliform testing, gate valve placement, corrosive water, and movement of underground bacterial pollution.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00646.x

出版商:Wiley    

年代:1980

数据来源: WILEY

摘要:

Residential customers may unwittingly cause cross connections when they attach containers of insecticide, herbicide, soapsuds or any other chemical to a garden hose and then connect the other end of the hose to an outside water tap. This article presents examples of residential cross connection and suggests that such incidents may be avoided through use of hose‐bibb backflow preventers.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00647.x

出版商:Wiley    

年代:1980

数据来源: WILEY

摘要:

Employees of the South Huntington Water District in New York developed an auxiliary tank device which gives them emergency capability to work an air‐actuated butterfly valve during extended power failures or compressor malfunctions.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00648.x

出版商:Wiley    

年代:1980

数据来源: WILEY