The slab was about 4in thick with wire mesh and a plastic barrier between the concrete and the wet clay like soil home located in new orleans.
Cutting a trench in concrete slab.
How to cut a shallow channel into a concrete floor.
Step 5 create a groove in the new mortar with a round nosed trowel.
Step 5 install the pipes to finish the job mix the cement and spread a layer about 3 inches thick around the mouth and sides of the drainage channel.
Check to make sure there are no electrical or plumbing lines.
Make sure the groove is at least 1 inches deep and at least 3 inches wide.
Set the diamond blade on the concrete wet saw to a depth of 4 1 2 inches and cut along both chalk lines.
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Extend the groove the length of the fresh mortar.
Allow at least 48 hours drying time.
With the jackhammer cut the drainage channel down to where you dug the trench in your yard so that the water will flow in the correct direction.
Locate the area of the concrete floor where you would like to cut the channel.
Don safety glasses hearing protection and steel toed boots for protection.
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Connect one end of a.