It powers through to the source of the blockage to resolve the issue and give you free running water again. |Use regularly to ensure pipes and drains remain problem free.|Gets to work in just 5 minutes. Safe for use on all pipes. Dissolves grease, hair and soap. For indoor and outdoor use. Protect your sinks and drains by using this drain unblocker on a regular basis.|Simply add 1 Litre of product to the affected sink or drain and allow the product to work for at least 5 minutes. For best results, leave for up to 1 hour and then flush through with hot water. If problem persists, treat again, and leave solution overnight.