Mr McKenic- Choke Clear is formulated to clear blockage problem that causes slow & inefficient drainage in most water drain pipes. Clogged drain pipes are common problems faced in areas like air-con units, kitchen sinks, toilets, drains & any place where drainage of wastewater is required. Often, such problems are caused by obstruction of solid materials or buildup of dirt and scum. Overtime, algae, scale & slime will grow & form the layer of clog along the inner pipes. If this persists, it will encourage the growth of unwanted bacteria and bad odour. Mr McKenic- Choke Clear effectively breaks up any buildup of rust, algae, scale & slime found inside drainage pipes. Its hassle-free application requires minimum dismantling & gives users the convenience of pouring the product into target areas without the need to scrub! As a preventive measure, this product may also be used to maintain drains and toilets to prevent chokes. no special requirements Singapore