The system must not:
California’s greywater code is found in Chapter 16 of the California Plumbing Code (CPC). Under the current code washing machine systems can be constructed without a permit in single family homes (1 or 2 units), so long as the guidelines are followed (see below). Other types of systems require a permit in the state. The state code includes both the residential code “HCD” and the commercial code “BSC”
Grey Water for Trees and Flowers
(ex: Honeysuckle, Red Oak, Ornamental Pears)
Grey Water For Vegetables
Requirements for no-permit systems in California
An easy way to direct flow back to the sewer/septic (like a 3-way valve). The valve must be labeled.