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Group Description

An open forum dedicated to rain water harvesting as natural source of water for household and garden needs.


Rainwater collection, purification, and storage will be discussed. Offgrid living, cistern construction, water conservation, system sizing, grey water recycling, radioactive rainwater and other topics are welcomed.


Photo, diagrams, and instructional material can be found in the files and photo's section.


Links to other helpful sites are found in the links section.



  1. Rainwater Harvesting and Purification System

  2. Offgrid Living

  3. Rainbarrel Tutorial: Rainbarrel Assembly

  4. Texas Manual on ainwater Harvesting [PDF]

  5. RWH System Sizing
    Calculator

  6. Blueprint of Rain Water Cistern Setup


  7. Choice of Roofing Materials for Asian and African Countries


  8. IRHA Facebook page

Group Information

Group Settings

  • This is a restricted group.
  • Attachments are not permitted.
  • Members can hide email address.
  • Listed in Yahoo Groups directory.
  • Membership requires approval.
  • Messages require approval.
  • All members can post messages.

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