Should the balcony storm drain become a P-trap?

It is possible to install a P-trap on the balcony rainwater pipe floor drain, and there is no special requirement.

The function of installing a P-shaped trap is that the P-shaped trap is generally installed under the bathroom, toilet, wash basin and sink in the family. Its function is to prevent the smell in the pipeline from lingering. P-trap (also called U-bend and S-bend) is equivalent to a water-based valve, and water can normally leak downward.

In fact, there are high requirements for installing P-type wells. The balcony will not raise the ground like the bathroom, nor will it have so many height advantages like the sink and basin. There is a P-shaped trap in the bathroom, and there is no need to install a P-shaped trap for the balcony rainwater pipe floor drain.