1 Lb Jar FLT BLUE POWDER - Bright Dyes Tracer Dye for water or wastewater leak detectionBRIGHT DYES WATER LEAK TRACING POWDER Bright Dyes Leak Tracing Powder products are ideal for applications involving large volumes of water, such as cooling towers, lakes, and rivers. They have a moderate rate of dispersion and are safe, non toxic, biodegradable and certified for to ANSI NSF International Standard 60. Bright Dyes leak tracing powders are environmentally friendly and designed to promote water conservation. You can feel confident in