What is a possible consequence of discharging from a subsoil drain?

Discharging from a subsoil drain can lead to creating a nuisance, as this action can bring excess water into areas where it is not desired or planned. For example, if water runs off into public spaces or neighboring properties, it can lead to pooling or flooding, disrupting the use of those areas and possibly resulting in property damage. This situation could also attract pests or contribute to unhealthy conditions, which further defines the discharge as a nuisance.

Understanding the broader implications of maintenance and design in plumbing systems is crucial, as responsible water management is essential to avoid negatively impacting the surrounding environment and community. The other choices might suggest various scenarios, but the creation of a nuisance particularly highlights the discomfort and inconvenience that poorly managed drainage can cause.