Tintex Drain Dye is a water colourant used to locate leaks in plumbing, tracing pipe locations, detect drain damage and water pathways. It is non-toxic to the environment and odourless. Available in Bright Blue, Bright Green, Bright Red, Bright Yellow and Fluorescein. Fluorescein is a Fluorescent Green colour that will fluoresce under a black light. Fluorescein is especially useful for use in dark areas.
Drain Dye: Add approximately 1 heaped teaspoon to a 10 litre bucket. (or approx.. 2 grams per litre)
Fluorescein: Add approximately 250g to 10 litres of water. Then use at a rate of approximately 250ml per 500 litres.