What should first due companies consider when unsure of the fire's location in a multi-unit building?

In the context of multi-unit buildings, when first due companies are uncertain about the fire's exact location, it is critical for them to establish a direct water supply to support firefighting operations effectively. Laying their own supply line is paramount because it ensures that they have immediate access to water, which is essential for suppressing the fire and protecting occupants. This action empowers the first responders to act quickly to mitigate the situation, rather than relying on other units or external sources for water.

Additional supply lines may be useful in some situations, but without a confirmed fire location, relying on them can delay action or create unnecessary complications. Moving to an alternate entry point could be an option, but without the specific knowledge of where the fire is, it may not be the most effective immediate response. Waiting for additional units can also lead to delays that might allow the fire to spread, making it more dangerous for both occupants and firefighters.

In conclusion, laying their own supply line offers the immediate capability to combat the fire effectively, which is critical in emergency response scenarios.