How do drain layers get minimal slope on pvc pipe?
I have a slight downslope away from my house. I want to run 90 mm pvc storm water pipe from a catch basin/access pit in a straight line down the slight slope to 8 m away to discharge to daylight near my garden.
The access pit has a female socket for the pipe at (I presume) 90 degrees.
The top of the access pit is supposed to sit flush with the top of the ground.
Note that this drawing is not to scale and also exaggerates the slope of my lawn. It shows what I would like to do with the pipe.