Bright Dyes septic inspection dyes disintegrate rapidly in water and provide vivid, fluorescent color detectable in murky water, sewage or septage. When performing septic inspections, it can be used to identify leaks, infiltration and exfiltration in plumbing connections, validate sanitary and septic hookups and performance, and identify leachfield issues and sources of contamination in wells. They are safe, nontoxic, biodegradable and are certified by NSF International to ANSI/NSF Standard 60 for use in and around drinking water. They are available in fluorescent yellow/green, fluorescent red, fluorescent orange and non-fluorescent blue. They are available in tablet, liquid or powdered form. 800/394-0678; www.brightdyes.com.