Stan The Man wrote:

As those with a septic tank will know, "biological" detergents are a
no-no because the enzymes prevent the proper breakdown of solids. I
would avoid them everywhere in the garden.

So would I, but as I don't wash with them in the bath, it hasn't been a
problem!

--
Linus: I guess it's wrong always to be worrying about tomorrow.
Maybe we should think only about today.
Charlie Brown:
No, that's giving up. I'm still hoping that yesterday
will get better.