There are numerous reasons for the blockages. In homes, it can be due to hair, soap, fat, and food waste. In industries or commercial areas, the drains might be blocked due to grease, oil, large solid wastes, or mineral build-up. In the public sewage system, blocked drains can result from fatbergs (large masses of solid waste), tree roots, foreign objects, leaves, and silt. These blockages can lead to inefficient drainage, damage to the drainage systems, or even structural damage if not attended to promptly.

Prevention, they say, is better than cure, and it holds for drains as well. Regular and professional inspection of drains, appropriate waste management, particularly in commercial and industrial establishments, and public awareness about the implications of improper disposal of waste are crucial in preventing blocked drains emergencies. For simplicity, a good rule to follow is the "3 P's Rule" – only Pee, Poo, and (toilet) Paper should go down the drain unblocking farnborough.
However, once a drain is blocked, urgent attention and professional expertise are required to rectify the situation. It is recommended to get in touch with a local drain repair service, who may use specialized tools, including plunger, plumber's snake, hydro jets, or even CCTV drain survey in case of severe or repeated occurrence. The use of chemical drain cleaners should be minimal due to environmental concerns and potential damage to drainage pipes.
In conclusion, emergency blocked drains are a significant challenge faced by individuals, businesses, and municipalities. Addressing them requires immediate intervention due to the potential health and environmental hazards they pose. However, preventive measures, responsible disposal of waste, and regular professional maintenance can greatly help in reducing the frequency and the magnitude of such emergencies. Therefore, while we must be equipped to deal with such emergencies, our focus must be on creating a proactive approach to preventing them.