How to Distinguish Between Storm Drains and Sewer Drains?

What is a storm drain? How can you tell the difference between a storm drain and a sewage drain? Many people are still unaware of the concepts and distinctions between the two.

Rainwater wells are essentially rainwater inspection wells; similarly, sewage wells are sewage inspection wells. According to our country's outdoor drainage design standards, inspection wells should be located at pipe intersections, bends, drop-offs, and changes in slope. It is evident that the actual function of inspection wells is to ensure the smooth intersection of pipes, changes in slope, and bends.
Rainwater wells can replenish the ground with rainwater, with excess rainwater being drained through drainage pipes; septic well wastewater is considered sewage, typically deeper, and usually discharged into a septic tank. Next, let's take a closer look at the differences between the two.

In essence:

The rainwater well features a hole for connecting drainage pipes; at the bottom, there's a pipe that can extend downwards to replenish ground water and discharge excess rainwater. The sewage well is a component of the ship's bilge water system, typically a small container temporarily installed for the storage of ship sewage.