You can also opt to eliminate flushing with water altogether by installing a composting toilet (or a dry toilet of any kind). Just this change alone, not flushing your toilet with fresh, clean, drinking water, will save you 19%! Or if you were smart and opted to install the low-flush toilet, 4%! Not too shabby…
While the first two solutions can be achieved no matter what kind of home you’re in, greywater systems will need to be designed into your home BEFORE you start building (or as an extensive retrofit). They will take full advantage of the greywater and/or blackwater systems (below) that we’ve been discussing and will go further than simply saving you water, they will REUSE it!