1

Typical jointing instructions:

INSPECT JOINT SURFACES

Inspect spigot and socket for damage which may prevent a good seal being obtained. Brush or wipe both surfaces to remove any dirt or water.

2

HANDLING

Pipes are best lifted with a sling around the barrel positioned at the point of balance. Ensure that slings have an adequate safe working load.

NOTE: Concrete pipes are heavy and, with relatively thin sections, are easily damaged. Avoid impact with hard objects.

3

RUBBER SEALING RING

Stretch the rubber ring onto the end of the spigot with the flange pointing towards the receiving socket. Equalise the tension on the ring by lifting and releasing at intervals around its length. Ensure that the ring is not twisted. Do not use lubricant.

4

TRENCH PREPARATION

Scoop out bedding material to accommodate the bell end of the next pipe to be laid and also immediately in front of the receiving socket to prevent ingress of stone during jointing.

5

JOINTING

With the weight of the pipe supported on the sling align the spigot to the socket of the receiving pipe and push home. The spigot must enter the socket squarely to enable the rubber to roll and compress. Jointing tackle may be required for larger diameter pipes. Adjust pipes for line and level.

6

TESTING

Check with feeler gauge or screwdriver that the rubber ring has rolled and compressed evenly. After every third pipe, and before backfilling, an air test should be applied.

NOTE: In difficult trench conditions it may be prudent to test after each joint.