Water supply and an unsupervised supply of unknown quality. An example of a direct cross connection is a piping system connecting a raw water supply, used for industrial fire fighting, to a municipal water system. An indirect cross connection is an arrangement whereby unsafe water, or other. Water System Design Manual DOH Pub 331-123 Revised June 2020. Acknowledgments This is the fourth edition of the Water System. 5.11.1 Power Supply Reliability.

• About The Manual 3.8design Water Supply Systems
• How To Design Water Supply System
• About The Manual 3.8 Design Water Supply System Map

This manual has been developed by the Central Public Health and Environmental Engineering Organisation (CPHEEO), a department under the Ministry of Urban Development (MoUD) and is intended primarily for the managers and technicians in-charge of the O & M of the urban drinking water supply systems.

The aim of the manual is to serve as a guide for strengthening the technical, operational and managerial capabilities required of the concerned personnel to operate and maintain water supply services as per acceptable norms of quantity, quality, sustainability, reliability and cost.

Experience has shown that lack of attention to O & M of water supply schemes in several towns in India often leads to deterioration of the systems, necessitating premature replacement of many system components as well as wastage of valuable financial resources. Quality of services as well as consumer satisfaction have also been identified as important components of O & M services, that continue to be ignored.

Some of the key issues contributing to the poor O & M have been identified as follows:

• Lack of finance, inadequate data on O & M
• Inappropriate system design and inadequate workmanship
• Multiplicity of agencies, overlapping responsibilities
• Inadequate training of personnel
• Lesser attraction of maintenance jobs in career planning
• Lack of performance evaluation and regular monitoring
• Inadequate emphasis on preventive maintenance
• Lack of operation manuals
• Lack of appreciation of the importance of facilities by the community
• Lack of real time field information etc.

In recent years, an urgent need has thus been identified for a modification in the policy framework for effective O & M of water services to improve quality of services and prevent wastage of resources.

This manual provides systematic guidelines that aim at improving the O & M services and has been divided into the following chapters that provide the details such as the background, operation, functioning, maintenance and safety considerations of all the technical aspects related to water supply O & M:

1. Introduction
2. Strategy
3. Sources of water supply
4. Transmission of water
5. Water treatment plant
6. Disinfection
7. Reserviors including service reserviors
8. Distribution systems
9. Drinking Water Quality, Monitoring and Surveillance
10. Repair of pipeline
11. Drinking Water Quality
12. Monitoring and Surveillance
13. Water Meters, Instrumentation, Telemetry & Scada Billing and collection
14. System management
15. Water audit and leakage control
16. Energy audit and conservation of energy
17. Human resources development
18. Public awareness and customer relations
19. Safety practices
20. Public-Private partnership

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About The Manual 3.8design Water Supply Systems

Online design tool for a water supply system

This application can be used to design Water Supply Systems.

How to Use

• Make a sketch of your system - something similar to the default sketch below. Custom drawings can be linked to the application - any global (http://..) or local (file://..) url should work
• Tag the sections and add them to the hierarchical application structure below (modify or reset the default system)
• Add input data - flow, preliminary dimensions, lengths, elevations, minor coefficients and so on for each section
• Modify the dimensions to achieve reasonable values for velocities and pressure losses
• Save the data file to your computer/network
• dimensions, copper, pvc, pe
• minor loss coefficients, viscosity, density, roughness

Related Topics

How To Design Water Supply System

• Water Systems - Hot and cold water service systems - design properties, capacities, sizing and more

Related Documents

• ASTM B88 - Seamless Copper Water Tubes - Dimensions - Water and Gas Copper Tubes according ASTM B88 - type K, L and M - imperial units
• ASTM D1785 and ASTM F441 - PVC and CPVC Pipes Schedule 40 & 80 - Standard dimensions and weight of PVC - Polyvinyl Chloride - and CPVC - Chlorinated Polyvinyl Chloride
• ASTM D2846 - CPVC Plastic Hot and Cold Water Distribution Tubes - Dimensions - Dimensions of CTS - Copper Tube Sized CPVC (Chlorinated Poly Vinyl Chloride) tubes
• ASTM D3035 - Polyethylene PE pipes - dimensions - Dimensions of PE pipes based on controlled outside diameter
• ASTM F876 - PEX Tube - Dimensions - Dimensions of PEX tubes
• BS 2871 - Copper Tubes - Dimensions and Working Pressures Table X, Y and Z - Metric Sizes of copper tubes to BS (British Standard) 2871
• BS 7291 - Thermoplastics pipes for hot and cold water - dimensions - Dimensions of thermoplastic pipes - PEX and PB according BS 7291
• Cold Water Storage Capacity - Required cold water storage capacity - commonly used fixtures and types of buildings
• Cold Water Storage per Occupant - Cold water storage for occupants in common types of buildings as factories, hospitals, houses and more
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• Copper Tubes - Pressure Loss in Fittings and Valves Expressed as Equivalent Length of Tube - Copper tube fittings and equivalent lengths - in feets of straight tube
• Copper Tubes Type K - Dimensions and Physical Characteristics - Physical characteristics of copper tubes according ASTM B 88 type K
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• Design of Domestic Service Water Supply Systems - Introduction to general design of domestic service water supply systems - with pressurized or gravity tanks
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• Farm Livestock - Water Consumption - Farming and animal required water supply
• Fittings and Minor Pressure Loss - Minor pressure loss for fittings in piping heating systems
• Fixture Units - WSFU vs GPM and Liters/sec - Converting WSFU - Water Supply Fixture Units - to GPM
• Fixture Water Requirements - Water outlets demand
• Hazen-Williams Equation - calculating Head Loss in Water Pipes - Friction head loss (ft_H2O per 100 ft pipe) in water pipes can be estimated with the empirical Hazen-Williams equation
• Hoses - Water Flow and Pressure Losses - Water flow and pressure loss due to friction in hoses
• Hot and Cold Water Pipe Sizing - Recommended dimensions of hot and cold water pipes
• Hot Water Consumption per Occupant - Consumption of hot water per person or occupant
• Hot Water Storage Tanks - Dimensions and Capacities - Dimensions and capacities of hot-water storage tanks
• Hot Water Supply - Fixture Consumption - Design hot water consumption of fixtures - basins, showers, sinks and baths
• Hot Water Supply - Flow Rates to Fixtures - Hot water consumption of some common equipment as basins, sinks, baths and showers
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• ISO 4427 - PE Pipes for Water Supply - Dimensions - Polyethylene pipe dimensions according European Standards
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• Maximum Flow Velocities in Water Systems - Water velocities in pipes and tubes should not exceed certain limits
• PE - PolyEthylene Pipes, Flow and Pressure Loss - Water flow in SDR pressure rated PE-pipes - pressure loss and velocities - Imperial and SI units
• PE Pipes - Pressure Grades - Polyethylene - PE - pipes and pressure classes
• PE Pipes - Pressure Ratings - Water pressure ratings for schedule 40 and schedule 80 Polyethylene plastic pipes
• PE Pipes - Temperature and Pressure Ratings - PolyEthylene pipe - temperature and maximum operating pressure
• PE Water Supply Pipes - Properties - Nominal pipe size, outside diameter, wall thickness, weight and working pressure
• PE, PEH or PVC Pipes - Pressure Loss Diagram - Pressure drop (bar/100 m) and velocy in PE, PEH or PVC pipes
• Plastic Pipes Operating Temperatures - ABS, PE, PVC, CPVC, PB, PP and SR - pressure and operating temperatures
• Plumbing Codes - Plumbing or sanitation codes are a set of rules and regulations imposed by cities, counties or states
• PVC Pipes - Pressure Ratings - Maximum operating and required burst pressure of PVC - Polyvinyl Chloride - pipe fittings
• PVC Pipes Schedule 40 - Friction loss and Velocity Diagrams - Friction loss (psi/100 ft) and velocity for water flow in plastic PVC pipe schedule 40
• Sizing Domestic Hot Water Heaters - Domestic Hot-Water sizing equations - heating capacity, recovery rate and power supply
• Sizing Water Supply Lines - Sizing water supply service and distribution lines based on Water Supply Fixture Units (WSFU)
• Water - Human Activity and Consumption - Activity and average water consumption
• Water Discharge Volume Flow through a Hose - Water discharge through hoses - pressure ranging 10 - 200 psi (0.75 - 14 bar)
• Water Distribution Pipes - Materials used in water distribution pipes
• Water Flow in Copper Tubes - Pressure Loss due to Fricton - Water flow and pressure loss (psi/ft) due to friction in copper tubes ASTM B88 Types K, L and M
• Water Flow in Tubes - Reynolds Number - Clean cold waterflow in pipes and the Reynolds number
• Water Service Pipe Lines - Water service pipe lines extends from the potable water source to the interior of buildings
• Water Supply - Calculating Demand - Calculating expected demand of water supply in service lines
• Water Supply - Fixture Units WSFU - WSFU is used to calculate water supply service systems
• Water Supply Pipe Lines - Sizing - Sizing of water supply pipe lines
• Water Supply to Public Buildings - Required water supply to public buildings
• Yard Fixtures - Water Consumption - Water consumption in garden fixtures

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About The Manual 3.8 Design Water Supply System Map

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