This liquid unblocker is suitable for unblocking bath, shower and sink drain pipes. Also for removing hair and soap residue. The product has the great advantage that no heat develops when dosing into the clogged drain, which prevents heavy splashing and prevents plastic pipes from melting. Use / dosage: Make sure that as much water as possible is removed from the clogged drain. Then pour the unblocker slowly and directly into the drain. Let this work for about 30 minutes (1 cup for sinks and 2 cups for shower and bath). Finally, rinse thoroughly with water and repeat if necessary. Store frost-free and out of direct sunlight. Avoid large temperature fluctuations during storage. This product is intended for professional use only.