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close this book Water purification, distribution and sewage disposal for Peace Corps volunteers
close this folder Section 3: Planning the distribution system
View the document Overview:
View the document Design
View the document Existing facilities
View the document Size and nature of the community
View the document System capacity
View the document Water source
View the document Proposed system
View the document Financing the project
View the document Lesson plans

Lesson plans

PLANNING THE DISTRIBUTION SYSTEMS

LESSON NO. 1

LESSON OBJECTIVE: To determine existing facilities which may be useful as part of the planned system.

TOPIC

INSTRUCTIONAL

PROCEDURE

SUPPLEMENTAL MATERIALS RELATED READING

Water Sources

Lecture on various types of possible water sources and their characteristics.

Pictures of various sources. Chart on characteristics of source

 

Show how to use tables in determining the yield of a source.

Water sources, floats, current meters, weirs. tables on yield.

 

Demonstrate how to measure velocity of water.

Individual Water Supply Systems, p. 24-52.

Pumps

Ask students the conditions under which a pump is necessary to distribute water.

Models of pumps. Photographs and/or drawings of pumps.

 

Briefly mention pumps used in large systems(stress it is not the concern now).

Chart giving characteristics of pumps.

WHO Monograph Series #42.

Chapter 4.

 

Lecture on the characteristic features of pumps most often used in Rural Water Supply.

 

Pipes

Ask students to name materials most commonly used for pipes.

Samples of pipes from various materials, measuring scales & gauges

 

Add local materials omitted by the students.

 
 

Demonstrate how to measure pipe diameters.

 

Geographic Locations

Show general areas where the Peace Corps will go.

World Map

Atlas of climatic regions of the world, showing: relief, vegetation, seasonal rainfall and temperature distributions.

 

Lecture on climate of each region.

 
 

Discuss in class possible hindrances to construction work.

 
 

Group them on the board under causative.

 

Local Materials

Lecture on trade-off values: e.g., quality vs. expenses to achieve convenience.

 
 

Discuss in class the materials which can be adapted to suit an improved distribution system.

 

 

PLANNING THE DISTRIBUTION SYSTEMS

LESSON NO. 2

LESSON OBJECTIVE: To choose the most suitable source for development and select a suitable site for the system facilities.

TOPIC

INSTRUCTIONAL PROCEDURE

SUPPLEMENTAL MATERIALS RELATED READING

Selecting Water

Source

Discuss the possible combination of characters a source can have.

Section on Sources.

 

Let each student draw the characteristics of the source he would choose first.

 
 

Discuss the feasibility of each proposal.

 
 

Formulate a guide to quick choices.

Monograph Series #42

pp. 34-35.

Selecting the site

Discuss the importance of proper locations of facility sites.

Suggested Design Criteria: or Waterworks in Recreational Areas, Sections 2-4 and 9 3.

 

Draw a guide to site selection.

 

 

PLANNING THE DISTRlBUTION SYSTEMS

LESSON NO. 3

LESSON OBJECTIVE: To select pumping equipment most suited for use in rural areas.

TOPIC

INSTRUCTIONAL PROCEDURE

SUPPLEMENTAL MATERIALS/ RELATED READING

Characteristics of Pumps.

Ask students to recall characteristics of pumps.

Section on character

 

Discuss with students what would be the best guide criteria for choosing a pump.

Pumps and/or pump models.

 

PLANNING THE DISTRIBUTION SYSTEMS

LESSON NO. 4

LESSON OBJECTIVE: To describe the community to be served; specifically, the aspects that affect the plan.

TOPIC

INSTRUCTIONAL PROCEDURE

SUPPLEMENTAL MATERIALS/ RELATED READING

Relation

Lecture on how to estimate the population of a community.

 
 

Show how to calculate projected population and relationship between population and demand .

WHO Monograph Series #42,

p. 42-43.

Solutions and al Structure

Discuss the importance of long established traditions.

 
 

Discuss what traditions are likely to clash with the planned system and how to avoid such a clash.

 

Atomic Standard

Discuss the connection between occupation and water demands.

 
 

Relate type of houses to distribution systems

 
 

Compare availability of skilled labor in U.S. to underdeveloped countries.

 
 

Discuss how to select workers for the project

 

 

PLANNING THE DISTRIBUTION SYSTEMS

LESSON NO. 5

LESSON OBJECTIVE: To prepare a chart projecting expected costs of material and labor. Estimate the required amount of money and how to raise the money.

TOPIC

INSTRUCTIONAL PROCEDURE

SUPPLEMENTAL MATERIALS RELATED READING

Cost

Discuss how to estimate the coat of the project.

WHO Monograph Series #4

pp. 28-33.

 

Discuss various methods.

Financing Statements

Section 6