11. As " Hospital Drove ", the boundary meets Tydd St Mary at the South Holland Main Drain . 12. Unlike many Maginot positions, the main drain at La Fert?was not configured as an emergency exit. 13. Apart from flow from Islamabad area, 11 main drains of Rawalpindi City also contributes to Nullah Lai. 14. The South Gippsland Highway traverses the Main Drain near its river mouth, emptying into the Western Port. 15. Sand or DE filters must be backwashed, with the main drain plug removed and all water drained out. 16. The original plan shows that the urinal stalls were connected to a main drain by a 4-inch pipe. 17. Close by is Midelney pumping station, which was built in the 1960s at the head of Westmoor main drain . 18. Such nightclubs across Asia were once the main drain for much of the world's brandy and plenty of whiskey. 19. He estimated that it would cost an additional ?, 136 to make the main drain suitable for craft drawing. 20. But most of the water rushes into the bowl and forces the wastes through the trap into the main drain .