Scum bugs turn brown almost immediately
Every one of these scum catching things turned brown within 12 hours of putting them in my hot tub. I have repeatedly checked the water chemicals and all are within normal range. I even ran some of the through the washer to see if the brown staining would come out and it didn't. They don't feel like they've absorbed any oil, they're just wet and brown. I threw them out. I wouldn't buy these or recommend them to anyone.
Rating: 1 stars