Product review (5 stars): Buy the thing already and stop looking at it suspiciously ....
Unbelievable.

I'm on septic. All we are putting into that now is dirty water. So much better. My plan is to run our drain hose to a barrel for use on our native landscaping. There are no chemicals or bleach nonsense to contaminate the soil and the plants can filter out the dirt themselves. It's a big fat win win win.