Are there any health concerns associated with a home rainwater harvesting system?
Potential health concerns associated with a home rainwater harvesting system arise only if the rainwater is ingested. If installed incorrectly, the home’s rainwater supply lines may be crossed with the drinking water supply. To prevent this, all water service lines in the home carrying rainwater must be clearly labelled “Non-potable water – do not drink!/Advertissement: Eau non-potable – ne pas boire!” during installation. This labelling serves as an indicator that water carried through these lines is not of drinking water quality and therefore not suitable for human consumption. Water treated by a home rainwater harvesting systems does not meet the provincial drinking water quality standards and should not be consumed under any circumstance.
