Composting toilets- general (18) Composting toilet codes/permits (6) Urine diversion and use (3) Greywater reuse- general (166) Branched drain systems (13) Greywater codes/permits (17) Greywater plumbing (29) Indoor GW reuse (toilet flushing) (2) Laundry-to-landscape systems (26) Manufactured greywater systems (7) Soaps and products (9) Rainwater harvesting- general (15) Rain barrels (2) Rain gardens Rain tanks (roofwater collection) (3) Rainwater codes/permits (2)