| 1. |
Now is the Time to Flush Distribution Systems |
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Opflow,
Volume 10,
Issue 9,
1984,
Page 1-6
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PDF (887KB)
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摘要:
Fall is a good time to flush distribution systems, as peak use summer months are over and winter weather has not begun. Fourteen rules to follow for a successful flushing program are provided. Crew and equipment requirements are outlined, and the importance of thorough recordkeeping during the program is emphasized.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1984.tb00351.x
出版商:Wiley
年代:1984
数据来源: WILEY
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| 2. |
Certification Corner |
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Opflow,
Volume 10,
Issue 9,
1984,
Page 2-8
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PDF (119KB)
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摘要:
Certification questions in this issue cover: water volume related to pipe size; tank capacity; water quality indices; dechlorinating agents; and bacteria destruction rates.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1984.tb00345.x
出版商:Wiley
年代:1984
数据来源: WILEY
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| 3. |
Ratchet Handle Valve Key Makes Job Easier |
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Opflow,
Volume 10,
Issue 9,
1984,
Page 3-3
John J. Pirino,
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PDF (666KB)
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摘要:
This ratchet handle, variable‐height valve key was designed to prevent back injuries and other strains that often occur while using a conventional valve key. Construction details are provided.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1984.tb00346.x
出版商:Wiley
年代:1984
数据来源: WILEY
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| 4. |
Microcomputer Billing for the Small Water Utility |
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Opflow,
Volume 10,
Issue 9,
1984,
Page 4-5
David F. Edson,
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PDF (836KB)
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摘要:
The billing process is one that many water utilities can afford to automate, due to dramatic price reductions for increasingly efficient microcomputers. This article describes the various components of a microcomputer system and considerations in selection of a billing program, or software.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1984.tb00348.x
出版商:Wiley
年代:1984
数据来源: WILEY
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| 5. |
Energy Conservation in Municipal Water Systems |
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Opflow,
Volume 10,
Issue 9,
1984,
Page 6-7
Harold F. Reheis,
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PDF (145KB)
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摘要:
Many utilities control the operation of their raw‐ and finished‐water pumps according to the water levels in their ground storage or elevated storage tanks. The practice of keeping storage tanks full or nearly full may not be necessary in terms of energy consumption, though. This article provides a case study of two distribution systems with differing hydraulic, pressure, and flow constraints. By modifying water storage levels and pump use patterns, each utility could save significant amounts of energy. A discussion of electric rates and special power service contracts is included. The first part of this two‐part article appeared in the July 1984 issue of Opflow (type DIALOG AN 0011114).
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1984.tb00349.x
出版商:Wiley
年代:1984
数据来源: WILEY
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| 6. |
Air Vent System Prevents Media Upset |
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Opflow,
Volume 10,
Issue 9,
1984,
Page 7-7
Nancy Brown,
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PDF (59KB)
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摘要:
Air trapped in the underdrain system of a filter can cause severe media upset when the filter is backwashed. This article describes a simple air vent that can be used with most filter systems to prevent upset media. Construction and installation tips are provided.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1984.tb00350.x
出版商:Wiley
年代:1984
数据来源: WILEY
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