Hello, DIY65 - We are sorry to read about your unsatisfactory experience with the backpack fogger/sprayer! This product may be used with consumer-grade home and garden chemicals such as insecticides, fungicides, weed killers, and fertilizers. But it shouldn't be used with cleaners and disinfectants, which may be contributing to your issue. If you would, please be looking for an email from us at Reviews@RYOBItools.com. We'd appreciate a chance to discuss your experience further and work with you to find a good resolution.