Changes

Rapid Technical Assessment Rapid technical assessments are used to review existing technologies to determine what is working and what could be working better as well as to develop marketable solutions to make on-site wastewater systems easier to purchase, install, use and maintain. [[San_Fernando_City_-_Assessments|In San Fernando, La Union, Philippines, teams of Barangay health workers and licensed plumbers performed a rapid technical assessment of 125 homes in 2 days.]] The entire force of health workers used the information gathered from the assessment in campaigns to promote their program. The following is adapted from their training manual:

The trap is very simple. Imagine a capital "P" turned on its side so the fat part points down. As you run water through the sink, wastewater will flow down into the "P" and back up down the stem into the DWV riser. When you shut off the sink, a small amount of water remains trapped in the "P," blocking the gasses. The water does not get rancid because you change it every time you run the faucet.