Plant-Friendly Soaps That Are Safe for Greywater ...
Sinks: Oasis All-Purpose Cleaner, Dr. Bronner’s Pure-Castile Liquid Soap, most glycerin-based soaps. Cleaning products: Use vinegar-based products, not white powders. Or, turn off the greywater system if you need to do a deep scrub with a salt-based “powder” cleaner. Salts