Do eco ball really work within your wash tool?

Ive heard that wash with purely water have the same results.

Answers: They are not worthy when washing whites.
If you want to be environmentally friendly try using Ecover soft. I only use one capful within each purify and it does the job lacking killing the dolphins!
It's a great product and they own all sorts within their range. There's powder if you prefer that!

They don't work for me...