B. COMMON SOAK-AWAY.
Carry out as for land drain. At the outlet end dig a hole 11/2 meters deep by 1 meter wide Fill with hard core (broken bricks etc.), cover with plastic sheet or cap with concrete finish about 300mm below the surface. Back fill with top soil.
C. FRENCH DRAIN.
About a meter from the outside of the terrain area that floods, dig a trench. Fill with 25mm/16mm pebbles up to the surface. This will act as a soak-away and a walk area.