I love this family & follow her channel. Just recently she showed how to make your own laundry detergent. We have a septic system & I've done some research on this & get conflicting answers about using it in the septic system but it sure is a lot cheaper than using store bought, ready made detergent. I'm not making my own until I know for sure it's safe for my HE washing machine & my aerobic septic system.
https://www.youtube.com/watch?v=XkFsxP6OaXI&t=136s