Scheveningen

A helpful PSA, though: It's not a good idea to use more high-power pumps than you have mixing capacity in atmos set-ups.

You need the omni mixers to do their job to even supply the necessary air that you need into the distribution system, otherwise your activated pumps are consuming a massive amount of power moving very little air at all. Initially it's going to transport the majority of the air it does have mixed into distribution, but after the gas is pushed into the system, you have nothing in supply.

Similar principles apply for dangerous gases to insert into the distribution system.