Clear all debris and obstructions from around the site.
Ensure that all minimum setback distances from buildings and boundary fences / walls etc. are achieved.
Provide access for excavator and concrete truck.
Ensure that the necessary barricades are in place to make sure unauthorized persons cannot get close to the excavated area.
Clearly mark the area to be excavated providing necessary allowances.
Dig only the required cut out.
Ensure that the pit has square corners and straight & vertical sides (i.e. the sides are at 90 degrees to each other and in straight & vertical) and has a level base.
Angle the batter - provide slopes - according to the soil conditions to ensure the stability, if necessary.
Ensure that the excavated soil is removed to a safe distance away from the excavation pit and place activities.
Ensure that the base of the pit is smooth by removing any protruding objects, such as stones, boulders or rock, which may damage the tank.
Remove water if any, from the excavated pit prior to the tank installation.
Clean the pit and remove any loose materials before the installation of tank.
Ensure that the tank will be positioned so that the riser pipes– used for access and connection to services - are in the most convenient location.
Engage the correct machineries like cranes, loaders etc. with experienced operators.
Do not commence excavation if rain is forecast for that day.
Do not over excavate beyond the required length, breadth and depth allowing required clearances.