Is Dishwashing Liquid suitable for grey water and septic systems?Updated a day ago

Koh Dishwashing Liquid is septic-compatible and grey water compatible when used as directed in a normal wash. It is low in sodium, so it does not disrupt the beneficial microbes that break down waste in a septic tank or an aerated wastewater treatment system, and it contains no phosphates and no chlorine bleach. Close to neutral, made from readily biodegradable ingredients, food grade, made in Australia. That covers tank-and-trench septic systems, AWTS, and standard household grey water setups, as well as caravans, motorhomes, boats and off-grid homes.

Three rules apply on any septic or grey water system. Use Koh Dishwashing Liquid only as directed, which is 4 pumps, around 16ml, in a sink of warm water for an everyday load. Never pour undiluted product straight into a septic tank, a grey water line or an inspection opening. And avoid excessive use beyond what normal cleaning calls for, because overdosing any detergent puts an unnecessary load on the bacterial balance the system depends on. Scrape food scraps off plates before washing so fats and solids stay out of the line.

Wash water from Koh Dishwashing Liquid suits most household garden irrigation setups, but suitability for grey water reuse is never only about the product. It depends on your soil type, because clay and sandy soils handle irrigation water differently. It depends on what you are watering, because edible crops carry stricter rules than ornamentals. And it depends on your local council, because requirements vary by state and council area. Scrape plates first, water a small test area before you commit to a bed, and check your local guidelines if the system serves a permanent dwelling, since licensed installation is required in some states.