Make Someoner loo the best seat in the house with a long-lasting toilet block which Someone can rely on. Bloo in cistern block gets Someoner toilet shining again with cleaning and foaming action. A hygienically clean and fresh toilet with every flush. Bring colour to Someoner bathroom and turn Someoner toilet water pink with Bloo. Purple water technology which actively clean between flushes. With a concentrated cleaning action designed to prevent limescale. Our in cistern range cleans from the cistern to bowl every time Someone flush for a long lasting, thorough clean. No need to remove the pleated wrapper as The will dissolve in the water. Drop the block into the cistern by the water float. Allow 10 minutes for the block to settle before flushing. Replace with a new block when the colour starts to fade. Each block lasts up to 4 weeks.