What is an essential characteristic of all drainage systems in commercial settings?

In commercial plumbing, gas-tight seals are crucial for ensuring the prevention of harmful gases and odors from escaping the drainage system into occupied spaces. This characteristic is essential for maintaining indoor air quality and complying with health and safety regulations. Gas-tight seals help to prevent the backflow of sewer gases, which can be hazardous to occupants and create uncomfortable environments.

Additionally, these seals inhibit any leakage that could lead to system failures or environmental contamination, which is particularly important in larger commercial facilities where many drains and fixtures are interconnected. This function supports the overall integrity of the plumbing system and supports the necessary performance standards required in a commercial setting.