Easily check toilets for silent leaks that can waste thousands of galleons of water with our handy Blue Streak dye tablet dispensing container. This bulk container is ideal for plumbers, janitors, and hotel maintenance engineers. To use, simply shake a tablet into the tank. If a blue color appears in the bowl after a few minutes, you have a leak and repairs should be made. By catching leaks, you can save on water and sewer costs. Each bottle contains 200 tablets, enough to check up to 200 toilets at less than 12 cents per toilet. This cost effectiveness makes our 200 tablet bottle perfect for plumbers, property managers, hotel maintenance engineers, janitors, and anyone else responsible for large numbers of toilets. Our tablets are safe and made with non-toxic FD&C blue food coloring. Brilliant Blue Dye Leak Detection Tablets are a highly potent dye tablet for use in tracing water leaks, following water lines, examining water currents, etc.