https://www.nrgideas.com/marine-water-holding-tank-fluorescent-visual-dye-tablets-epa-standard-detect-leaks-tracer-dyes/
Marine Water Holding Tank Fluorescent Visual Dye Tablets | EPA Standard Tracer Dyes | Biodegradable
Fluorescent Visual Tracer Dye Tablets, Detect illegal discharge of watercraft holding tanks in the harbor. Bright green tracing water pipes leak plumbing...
https://www.pacesupply.com/Catalog/Chemicals-And-Sealing/Leak-Detection/DYEB
PACE Supply | Trace-A-Leak Water Tracing Dye, 100 Tablets Bottle, Blue
DYEB Trace-A-Leak Water Tracing Dye, 100 Tablets Bottle, Blue
pace supply