Marine Water Holding Tank Fluorescent Visual Dye Tablets | Tracer Dyes that meet EPA Standards--Made in the USA-- Safe for the environment!-------------- Biodegradable and safe for the environment! Detect illegal discharge of watercraft holding tanks in the harbor.Fluorescent yellow/green xanthene dye tablets are EPA acceptable and certified by the National Sanitation Foundation to the ANSI/NSF Standard 60 for use in potable water at recommended levels.----------- 1 tablet will give a strong visual signal in 60 gallons of water.----------- 200 Dye Tablets per container, recommended dosage: 3 tablets per vessel. Long lasting visual, up to a day in proper conditions. They are biodegradable and safe for the environment.---------------- Biodegradable fluorescent yellow/ green xanthene dye tablets. 1 tablet will give a strong visual signal in 60 gallons of water. Detect illegal discharge of watercraft holding tanks.Dye is EPA acceptable and is certified by the National Sanitation Foundation to the ANSI/NSF Standard 60 for use in potable water at recommended levels. The tablets are biodegradable and safe for the environment.--------------- Recommended dosage: 3 tablets per vessel. --------------- OTHER APPLICATIONS: Detect leaks in sewage systems, Trace water & Industrial Effluents, Trace Cross Connections, Measure power plant discharge, Detect illegal sewer connections, Monitor flow studies/mapping, detect toilet tank leaks.