Use a chisel and hammer to remove the three scrap pieces.
Cutting concrete slab for electrical conduit.
The blade that i am using is a bosch db741c 7 inch premium segmented diamond blade.
Step 7 backfill around the pipes.
Instead finish the cut with a utility knife.
The concrete will ruin your saw blade.
Save the piece for later.
Set the diamond blade on the concrete wet saw to a depth of 4 1 2 inches and cut along both chalk lines.
Ridged nonmetallic pvc conduit is the right material for this job because it is watertight inexpensive and easy to work with.
In this video we are cutting concrete with a circular saw aka skil saw.
Make a second cut inch away and parallel to the first.
It also allows future expansion of the electrical system by pulling additional wires through the conduit.