1.   From the gully a pipe leads to an inspection chamber which May also have the soil stack connected to it.

2.   Cracked pipes could lead to a mixing of the two water supplies.

3.   Leaky pipes have led to a loss of some of the oil from the field, said analysts.

4.   The corpse was found two days later when a policeman visiting the house spotted blood splashes on the sink outside from a pipe leading to the bathroom.