Recommended usage Min 1-2 bottle for clogged sink Min 2-3 bottle for clogged toilet bowl Min 4 bottle for tank cleaning and clearing It dissolve human hair, animal fur, leftover food and waste and so on. 1/3 at a regular interval for clog prevention Size: 110g and 268 gram Shelf life: 5 Years Directrion for use: For Clogged Place 1. Remove as much water as possible from areas which are to be treated 2. Basin outlets use 1 cupful. Toilet and floor drain use half liter. 3. Pour in this anti-clog agent and rest it for at least 45 minutes, or overnight 4. Try to flush it and repeat the procedure if necessary. Wear Gloves and DO NOT mix with other detergent as violent reaction can occur.