Can I use harvested rainwater to flush toilets or use in a washing machine?
Yes. Harvested rainwater can be used for these purposes. However, connection of harvested water to flush toilets and for laundry use are quite recent developments enabled by Water Mark and Australian Standards certified tank water/mains water interchange devices. Given legislated State Government water restrictions currently still at Stage 3a with real risk of moving on to Stage 4. Water usage and consumption have been and will continue to be more restrictive when considering rainfall patterns, global warming and population growth. Water restriction in one form or another seem to be here to stay, it is a reasonable assumption that harvested rainwater will increasingly be used for domestic, workplace and other non-garden related uses.
