Step 1
Place a carpenter ’s level onto the foundation floor and watch over the gradient of the storey to its lowly tip to find the most likely location of the void beneath the foundation . Ignore the build - in slope of the foundation go to any drain turn back in the concrete floor .
Step 2
exercise a line of 1 - 1/2 - in diam hole from the lowest point of the innovation toward the foundation inwardness . Stop at the point in time where the floor no longer splatter toward the washed out null beneath the home . Use a cock drill to bore through the concrete foundation along the choose bloodline with the cakehole spaced 6 - column inch apart .
Step 3
Attach the outlet hose to the mudjacker . launch the hosiery down the hole at the highest point of the foundation . take down the hose until it assoil the creation base . You will feel a modification in resistor as you move the hosiery through the hole , indicate that it ’s cleared the slab . Stop moving the hose once it reach the bottom of the slab . Place the carpenter ’s level next to the hole with the level positioned along the slope of the floor .
Step 4
Step 5
meld one part Portland cement with three parting take flight ash to produce the concrete slurry for the mudjacking cognitive process . sum up some expander linear to the premix , come after the manufacturer ’s directions on the amount . This will prevent the slurry from shrinking as it cures . Use a hoe to fold enough water into the commixture until it reach a batter - alike consistency . Use the spade to move the slurry from the wheelbarrow to the mudjacking machine ’s hopper .
Step 6
Open any doors or windows to increase the elbow room ’s ventilation . adapt the mudjacker control to 10 PSI . Turn on the machine to get down pump the material . Pump the slurry through the hose and into the space beneath the fundament . As you pump the slurry , the foundation will rise up somewhat . Keep pump until the carpenter ’s spirit level display the floor as layer again .
Step 7
Step 8
Move the stratum and the hose to the next hole down the line . Repeat the pumping unconscious process , fill the void under the foundation until the second hole is level . Continue down the line of holes until the nullity beneath the house is filled and the foundation no longer sags . change by reversal off the machine after finishing with the last muddle .
Step 9
Mix three voice sand with one part Portland cementum in a little pail . Add water to the mixture until it is the same consistency as peanut butter . Use a trowel to crusade this patch mix into the holes in the foundation . Insert the patch commixture until the holes are filled and the chemical compound is level with the surround foundation story .
