would the fire department use Water Type Pokémon?

[Mentalii]

Oviously they would !
A Surf attack seems to be really more effective than a simple water-jet.
And I think they would also use Fire-type Pokémon, to help people trapped into the flames, since they resist at Fire.

 

[Ice Arceus]

They would use water types, since they have more of an advantage against fire. However, that doesn't mean that water types are the only Pokemon they use. They can also use other Pokemon to help out in these types of situations, but we just haven't seen many fire fighters in the show to know for a fact.

 

[Nick]

Seems rather obvious that they would, considering they use water to put out fire as it is... I think they'd have a bunch of of other types as well. Fighting to help move things, psychic to help move things as well and to heal the injured (and a normal type for healing - ala Chansey and Audino), fire types to go into the fire without the risk of being burned...

 

[Tombo]

Yes, they would do.

In the anime, water Pokemon are used in several instances. For example, the Squirtle squad in Vermillion City put out fires.

Also, on the orange islands, there was the Wartortle squad (as well as a Blastoise and Squirtle) version.

It would greatly help the fire service!

 

[Yoshikkko]

EVIDENTLY THEY WOULD! Hire in the Squirtle Squadddd!!
And I like the Arcanine idea too, since they already use Arcanine on the police teams as well, so it would be kind of logical.

 

[Tulano]

They could use other types of pokemons to help people get out from the fire if they need help. They'll be great firefighters!