Project Description

Welcome to Pangea Builders School.

Our intention of this course is to teach you all about how to catch water from the sky, source it also from a well/city, clean the water, filter the water so we have drinking water and bathing/cleaning water.

What will this course bring you?

  • Understand how this system works, how it cleans and filters water, how to heat the water and how to maintain this system.
  • Know how to custom-design this system for different kinds of applications.
  • Know how, and possibly be able to build this system.


The average American uses 80 -100 gallons of water per day. Less than half is used for cooking or drinking, all of it is most likely treated, potable water from the local municipality.

Potable Water: water that is safe to drink or to use for food preparation, without risk of health problems.

Alternatively, water can be ‘harvested’ or ‘caught’ from the sky and gathered or stored in cisterns. This ‘catch water’ is then filtered to make ready for human consumption and use through filters.


The cisterns can be buried, preferably above ground or integrated into the interior of the building and used as a heat sink and optionally have a small waterfall incorporated.

The Cistern(s) can be ‘inter-tied’ to connect to municipal water so that when the water gets low, to a prescribed level, more water can be automatically added.

catch-water-organizing-moduleCatching the Water

Water is caught from a roof with a potable surface. From the roof, the water is channeled through silt catches into cisterns. Cisterns are sized to the local climate and are best buried and completely protected from the sun. The water from the cistern is gravity-fed into a Water Organizing Module with a pump and filter. The pump pushes the water into a pressure tank to supply code required water pressure. The filters clean the water for consumption and cleaning.

Steps to Reduce Water Use

Water efficiency is the smart use of our water resources through water-saving technologies and simple steps we can all take around the house. Using water efficiently will help ensure reliable water supplies today and for future generations. Best of all, everyone can play their part in preserving our water sources.

Small household leaks can add up to gallons of water lost every day. Check plumbing fixtures and irrigation systems each year.

  • Toilet Leaks
  • Faucet Leaks
  • Shower Head Leaks

The average household’s leaks can account for more than 10,000 gallons of water wasted every year and ten percent of homes have leaks that waste 90 gallons or more per day.

Sustainable Water Sourcing and Use 101

an overview of the system and how it works.

  • Steps to Reduce Water Use
  • Fixing Leaks
  • Roof, Slope & Gutters

Size the Water System

  • Water Use Calculation
  • Catchwater Volume Calculation

Build the Water System

  • Roof
  • Slope
  • Gutters
  • Silt Catch
  • Cisterns Size & Types
  • Gravity Feed
  • Cistern Plumbing
  • Plastic Cisterns & Installation
  • Tire Cisterns Construction
  • Insulate & Bury the Cistern
  • WOM: Water Organizing Module 101
  • WOM Parts & Pieces
  • Spin-Down and Sediment Trapper Filters
  • Build the WOM
  • Install the WOM
  • Initial WOM Start Up
  • Drinking Water Filter
  • Drinking Water Plumbing
  • Distribution of Water

Hot Water

  • Heating Water 101
  • Why Use Solar Water Heating?
  • How to Use Solar Water Heating
  • Get Started with Solar Water Heating
  • Storage Tanks & Solar Collectors
  • Selecting a Solar Hot Water Heater
  • Evaluate Your Site’s Solar Resource
  • Determining the Correct System Size
  • Building Codes and Regulations for Solar Water Heating Systems
  • Heat Transfer Fluids for Solar Water Heating Systems
  • Reduce Hot Water Use for Energy Savings


  • Water System Maintenance 101
  • Gutters Maintenance
  • Silt Catch Maintenance
  • Cistern Maintenance
  • WOM Service And Maintenance

Sourcing Your Water

  • Where Your Water Comes From