RainCentre US
- Solution to Offgrid Living
- Technology and Systems

About Rainwater Harvesting

Online rainwater digest promoting sustainable water management practices. Includes articles, case studies, discussion forum and instructions for establishing collection systems.

Ole Ersson's: Rainwater Harvesting and Purification SystemIn January 1996 we installed a rainwater catchment system to capture Oregon's abundant rainfall. Portland receives between 3 and 4 feet of rainfall annually. During a gentle rain a typical Oregon downspout sheds several gallons per minute. Our twelve hundred square foot roof captures on average 3600 cubic feet (27,000 gallons) of water per year... Read More.
RWH Sitemap.
The Nicholson's House: Offgrid LivingIt's a straw bale house, which means the outside walls are constructed of bales of straw pinned together with steel rods. The straw is then covered with chicken wire and a stucco coating is then applied. This coating keeps the straw from getting wet and increases the fire protection. A straw bale house constructed this way has a better fire rating than a normal wood frame house... Read more. The Nicholson's House: Offgrid Living An open forum for discussion of rain water harvesting as natural source of water for household and garden needs. Read more.
Texas Guide to Rainwater HarvestingIt is a practical guide to 'Rainwater Harvesting System Owner', featuring: # rainwater component system, # water quality & treatment, # water balance &system sizing, # rainwater harvesting guidelines, # cost estimation, # financial & other incentives, # references, #case-studies etc. The 88 page (2.4MB PDF document) manual is complete DIY information along with examples, data and illustrations. Also it is free to download.Download. Rainbarrel Tutorial: How to make a rain barrelA rainwater harvesting system can be as simple as a barrel connected to a downspout. Check the Rainbarrel Tutorial for tips on how to put together a system for as little as $15-20. One of our neighbors has connected his rainbarrel to his basement washing machine and gets virtually all his laundry water from this super-soft source for a miniscule investment. One notable advantage of rainwater is its softness. Rainfall in the Portland area contains about 5 mg/liter of dissolved minerals. Compare this with some hard groundwater which exceeds 500 mg/liter. Portland city water, which has an exceptionally pure source, is rated at 18 mg/liter. Read More. Health issues - Choice of Roofing MaterialsA literature on health aspects of RWH is surprisingly sporadic, even in countries where RWH use is widespread and of long standing. Read More.