I did find a use for the Kirkland Institutional Laundry Detergent the other day. I have a shredding machine that I use to process ivy trimmings about every year or so. The trimmings then go into the compost bins; it makes for great compost.
Anyway, I noticed the collection bag had sprung a hole, maybe an inch or two diameter. Too many shredings were getting through that hole. And the bad itself was filthy. I wanted to bring it in to sew up the hole on the Singer, but not in that condition.
So I got a three gallon bucket, filled it with about 1.5 gallons water, added a scoop of the Kirkland, tossed in the collection bag, swirled it around with a stick, and let it sit a bit.
The water turned jet black. I had to change the water for three or more rinses to get rid of the black (it's a white synthetic bag). Hung it on the line overnight, and sewed it up the next day.
The black wash water and rinses went down the drain.
Oh, and the collection bag still has stains... not gonna worry about that. It may have only a few years life left, at which point I'll need to replace it.