[Bondo]

Ok I'm confused? I thought that the reason for the corguated pipe behind the wall was to take the water away from the wall to keep it from wicking into the wall. So if the holes are facing ten & two (facing up) that would alllow the water to come in and carried away on the solid bottom. If the holes are on the bottom (4 & 8) how would the water come into the pipe to be carried away? Also the use of a sock over the pipe to keep soil and rock out of the pipe facing up allowing water to filter in, right? Help me figure this out..

Ayuh,.... Water takes the path of least resistence,...

Holes Up, dirt falls in, holes Down, water flows out...

Drainage tile with the sock has slits, not so much holes...
OP is usin' leach field tubes...