Which dye is best – tablets, liquids, powders or wax?
For small amounts of water, tablets are clean and easy to use…no measuring is required. They may be dropped or flushed directly into a drain, sewer, septic system, etc., where they dissolve in about 3-5 minutes. Or, they may be dissolved in a small amount of water first. For larger bodies of water, powder or liquid may be more suitable for your needs. In the situation of a long-term flow study, a wax product such as cakes, cones, or donuts would be used.
