Changes

There is a draft of [https://www.iccsafe.org/wp-content/uploads/110116-Draft-CSA_ICC-B805-Rainwater-Harvesting.pdf CSA B805 draft] currently under review. The scope of the document includes single family dwellings. But the guide is still under review and may not account for rain barrel systems when officially published.  

There is a draft of [https://www.iccsafe.org/wp-content/uploads/110116-Draft-CSA_ICC-B805-Rainwater-Harvesting.pdf CSA B805 draft] currently under review. The scope of the document includes single family dwellings. But the guide is still under review and may not account for rain barrel systems when officially published.  

(comments made in reference to draft v. 2, on 1st June 2017).

(comments made in reference to draft v. 2, on 1st June 2017).

Research in warm climates (Texas and Greece) has demonstrated that first flush diverters improve the chemical characteristics of the harvested rainwater[http://www.sciencedirect.com/science/article/pii/S0043135410008535][http://www.sciencedirect.com/science/article/pii/S0022169412006993]. However, the use of diverters does not prevent the development of pathogens in stored water.

Research in warm climates (Texas and Greece) has demonstrated that first flush diverters improve the chemical characteristics of the harvested rainwater[http://www.sciencedirect.com/science/article/pii/S0043135410008535][http://www.sciencedirect.com/science/article/pii/S0022169412006993]. However, the use of diverters does not prevent the development of pathogens in stored water.  Rain barrels are not typically accepted to provide any quantifiable water quality treatment beyond that achieved through runoff volume and pollutant load reduction.

==Costs==

==Costs==