DOTS��Kitchen Plughole Unblocker Targets fat, grease food blockages Stops slow draining water Professional strengthSafe for septic tanks! DOTS Kitchen Plughole Unblocker is a highly concentrated formula for targeting blockages caused by fat, grease and food. Quickly reaches and dissolves obstructions to keep sinks, drains pipes fresh and flowing freely. Use regularly to maintain free-flowing drainage. Always wear suitable protective gloves and eye protection when using this product. Never mix with other chemicals or use with a plunger. Avoid physical access until the drain has been flushed through.For blocked or slow-flowing sinks, drains pipes: pour 500ml down plughole or into drain opening. Clean up any spillages immediately. For minor blockages, leave for 5 minutes before thoroughly flushing through with hot water. For stubborn blockages, leave for at least 3 hours or overnight before flushing through. Repeat if necessary.For regular drain pipe maintenance: pour 100-250ml into drain once or twice a week to prevent bad odours and blockages. Take care to clean up any spillages and take measures to avoid unintended contact with drain unblocker. Active Ingredient:��Sodium Hydroxide The DOTS product range bottles are composed of more than 30% recycled plastic.