Check it regularly to see if the floor is sinking. If so, there's likely some space between the slab and the ground. 3. Drill a hole - Drill a small hole through the concrete and poke through it ...

Compared to working the slab with a good 2x4 ... cable to slip and need continuous readjusting. Truss screeds level off the concrete often featuring a vibration motor. These screeds are expandable ...