Photographic Chemicals Mixed black and white photography solutions can be diluted with water and flushed down a sanitary drain in your home. Do not dispose into a septic system. For more information about disposal of unmixed chemicals or color chemicals, contact the Eastman Kodak Environmental Hotline at 800.242.2424. Otherwise, save for your community's next household hazardous waste collection event. Businesses with photographic chemicals should contact a licensed company for proper disposal. See a list in our Business Recycling Directory.