*[https://www.cmhc-schl.gc.ca/odpub/pdf/67608.pdf Guidelines for Residential Rainwater Harvesting Systems Handbook]
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*[https://www.crd.bc.ca/docs/default-source/water-pdf/cmhcrainwaterhandbook.pdf?sfvrsn=67aa96c9_2 CMHC Guidelines for Residential Rainwater Harvesting Systems Handbook (2012)]