A typical plumbing problem that can affect both residential and commercial structures is pipe choke, also known as pipe obstruction or clogging. It describes the blocking of pipes completely or partially, which can cause backups, restricted water flow, and possible plumbing system damage. Pipe choke problems are common in Singapore's HDB (Housing & Development Board) flats, where centralised plumbing systems are common. These problems can impact numerous homes in the same building. This article will examine a few typical reasons of pipe choking and offer safeguards against such issues.

Accumulation of Solid Waste: One of the primary causes of pipe choke is the accumulation of solid waste materials. In HDB flats, this can include hair, food scraps, soap residue, grease, and other foreign objects that are improperly disposed of down drains and toilets. Over time, these materials can build up and form blockages in the pipes, leading to reduced water flow or complete pipe blockage.

Tree Root Intrusion: In some cases, pipe choke can be caused by the intrusion of tree roots into the underground plumbing system. Tree roots are naturally attracted to sources of moisture, and if there are cracks or gaps in the pipes, roots can penetrate them and grow inside, eventually causing blockages.

Accumulation of Mineral Deposits: Over time, minerals present in the water supply, such as calcium and magnesium, can accumulate and form mineral deposits inside pipes. This can lead to the narrowing of pipe diameter, reducing water flow and increasing the chances of pipe choke.