Here are some links to the household products I use that are safe for gray water systems
Laundry Powder only use 1-2 teaspoons not the scoop provided
https://www.modere.com.au/productdetail/laundry-powder/?referralCode=711656
Dish Washing Liquid
https://www.modere.com.au/productdetail/dish-washer/?referralCode=711656
Dishwasher Powder only use 1 teaspoon
https://www.modere.com.au/productdetail/dishwasher-powder/?referralCode=711656
hair care collection
https://www.modere.com.au/productdetail/live-clean-hair-collection/?referralCode=711656
Bar of Soap
https://www.modere.com.au/productdetail/body-bar/?referralCode=711656
Shower Gel which you could possibly use to clean the toilet as well
https://www.modere.com.au/productdetail/shower-gel/?referralCode=711656