The Bailey Drain Tracing Dye in Yellow (200g) offers bright, high-contrast visibility that's particularly effective in low-light drainage environments. This 8-ounce jar provides a dilution rate of 10-12,000 litres in clean water, making it suitable for focused tracing operations where concentrated colour intensity is beneficial. The vibrant yellow colour creates exceptional contrast against typical drainage backgrounds, ensuring clear identification of water flow direction even in challenging conditions. Application is straightforward: dissolve the required amount into approximately five litres of water before introducing it to the flow or tank. This preparation ensures even distribution and maximum visibility throughout the system. This variant's slightly higher concentration compared to other colours makes it particularly effective for situations where strong colour intensity is needed, such as heavily soiled systems or rapid flow environments. The yellow dye is also excellent for ph