Orient and Position Coupling (Bell End Down)

What happens here

The electrician then explains a crucial detail for proper installation: the expansion coupling must be oriented with its 'bell end' (the wider, overlapping part) facing downwards. This prevents rain or moisture from seeping into the electrical conduit through the expansion joint. If installed with the bell end facing upwards, water could collect in the crack created by the expansion and potentially enter the conduit, leading to electrical hazards. With the bell end down, any water will flow away and not penetrate.

Goal: Properly orient the expansion coupling to prevent water intrusion.