1. Engineers Without Borders at the University of Wisconsin - Milwaukee
Gravity-Fed Potable Water Distribution System in San Miguelito, Guatemala
Engineers Without Borders at the University of Wisconsin - Milwaukee

2. Background and Objectives
collaborates with La Asociacion to build water systems
Quiche region of Guatemala affected by Civil War from – 1996
Water hauled long distances by women and children
Primary Goal: efficient and sustainable gravity-fed water distribution system with 20 year design life
Secondary Goals: reduce water carrying burden and community education on sanitation, hygiene, and safe food preparation

3. Design Challenges and Solutions
~1000 foot elevation change from distribution tank to end of distribution lines
Large pressure build up but cannot use reducing valves
Break pressure tanks are simple, cost effective solution
Flow rate at houses dependent on location
High flow at some houses, low or no flow at others
Ficha functions as diffuser to regulate flow and pressure

4. Outcomes
System Components: spring box, conveyance line, chlorinator, distribution tank, distribution lines, break pressure tanks, valve boxes, tap stands
System carries water over two miles
Provides access via tap stands at houses for more than 270 people
Locally sourced materials
No operating costs and minimal maintenance
Support from La Asociacion and monitoring from