[vmike]

My tub, shower and laundry empty into a separate system from the black water septic. I have never had a problem with the water from the gray water system doing anything but making the plants grow. There is some lint that emanates from the washing machine. When I captured the wash water in a tank previously, I used a filter of pantyhose to capture the lint, mostly to keep it out of the pump. Fortunately my collection tank is out of doors and underground, because it will sour if you leave it stand indoors. If you do plan to store the gray water it's easy to make a chlorination device out of a plastic pipe "T" and some swimming pool chlorine tablets. I also like the pedestal pumps.