Polypipe Underground Drainage Coupling - 110mm - Terracotta

The centre stop ensures that the pipes are inserted to the correct depth, providing a consistent and secure joint alignment, which is crucial for the integrity of the drainage system.

While robust, this coupling is specifically designed and tested for underground drainage applications. For above-ground systems, consult Polypipe's specific product ranges.

Ensure the pipe ends and the inside of the socket are clean and free from dirt, grit, or debris. A damp cloth can be used if necessary, but ensure it is completely dry before proceeding.

The coupling is manufactured to meet BS EN 1401 and BS 4660:2000 standards where applicable for underground drainage systems.

While it may physically fit, it is engineered for optimal performance and secure jointing with the Polypipe PVCu Underground Drainage range. Using it with other brands may affect joint integrity and warranty.

Constructed from durable PVCu and designed for underground use, the coupling is expected to provide long-term performance and corrosion resistance, typical of PVCu drainage systems rated for many years of service.

Ensure the pipe end is clean, square-cut, and free of debris. Use a silicone-based lubricant on the seal and pipe end. Check for any damage to the pipe or socket.

Verify the pipe was fully inserted to the centre stop. Check the integrity of the seal within the socket for damage or debris. Ensure the pipe is correctly aligned and not under excessive stress.

Confirm the correct size pipe (110mm) is being used. Ensure the snap-cap mechanism is properly engaged and the pipe is seated fully.