Tag Archives: sanitization

Potable, Rainwater Catchment

Can You Drink Rainwater?


Close-up of a worn, metallic fountain pen nib on a black surface.Can you drink rainwater?

Despite increasing awareness aboutrainwater harvesting and its benefits, there is still word to get out about how and why collecting rainwater makes sense in a world where resources are limited and sometimes nonexistent. Whether due to drought conditions or aging infrastructure, millions of people around the world don’t have access to safe, clean drinking water. Here is an article, originally published in June 2014, titled Is My Rainwater Safe to Drink?

Sanitization seems to be a most elusive and complicated topic in Rainwater Harvesting for the homeowner, as well as for the designer or operator. There are no general definitive answers as to what deviceor treatment is appropriate for all systems. The main question is “When is my water safe to drink?”

Presently, thousands of people die or become gravely ill due to lack of clean water throughout theworld. Rainwater is generally a safer potable source than surface water; however it may carry pathogensthat could pose a health risk.

RainBank has published a free article to help you determine when your rainwater is safe to drink. Click herefor a free download to the entire article and don’t forget to check the box below to receive new posts via your inbox. Of course, if you have questions – contact us – our team willrespond to your inquiry within 48 hours. You can also find RainBank on LinkedIn,FacebookandTwitter.

Potable, Rainwater Catchment

Is Rainwater Clean and Safe to Drink?


A clear glass of water placed upside down on a countertop.Rainwater is generally considered clean to begin with, however, water is an excellent medium for growth and transport of disease causing organisms.

The good news is rainwater is relatively easy to filter and disinfect, and disinfected rainwater may significantly improve drinking water supplies.

The clean water act of 1974 and recent amendments have enhanced the protection of drinking water. But, news bulletins throughout the United States of contaminated municipal supplies have spawned an increased interest in rainwater harvesting as a source of drinking water. People are looking toward alternatives to an aging, overwhelmed infrastructure to provide a safe, clean source of drinking water for the household and family.

Water quality problems associated with rainwater harvesting systems most often originate in the catchment area, conveyance system, or storage components caused by:

  • System was poorly maintained
  • Collected water was not properly disinfected
  • Conveyance and storage were poorly designed
  • Simple measures were not taken toensure the quality of the water

All harvested rainwater that is intended for potable use must be treated effectively to minimize the risk of harming human health. To ensure a RWH system is producing high quality water, proper techniques in design, construction and maintenance along with testing need to be conducted.

Recent plumbing codes set by the American National Standards Institute (ANSI) and American Society of Plumbing Engineers (ASPE) along with the American Rainwater Catchment Systems Association (ARCSA) have been adopted at the national level and must be adhered to by designers and contractors installing rainwater collection systems meant for potable and non potable use.

Rainwater harvesting can be a safe, reliable source of drinking water if codes and practices are conducted. Ask if your designer and installer are ARCSA Accredited Professionals and are up to date on the latest plumbing codes.