Metal conduits should rise at least to prevent water ingress and facilitate connection. Alignment :
The foundation area for a standard unit should be at least 2000mm x 500mm x 150mm deep.
: Once aligned, mark the fixing hole positions, move the units, and drill into the floor.
Before touching a single tool, the official dedicates 20% of its content to pre-installation checks. Ignoring these steps is the primary cause of system errors.