The Drain Tracing Dye Yellow 100g is a highly visible dye designed for use in plumbing systems to trace leaks, blockages, and water flow paths. Ideal for maintenance professionals and DIYers, this dye helps quickly identify problem areas within drains, pipes, and drainage systems. Easy to apply, the yellow colour stands out in water, making it simple to monitor flow and pinpoint issues. It is a valuable tool for effective plumbing diagnostics, ensuring repairs are accurate and efficient.