Need help with gas port rocket loader.

[maestro]

I have a gas port linked to my launch pad which has a CO2 rocket engine. Engine is also connected to port via gas pipe.

I have canisters of CO2 but dupes are not bringing them to the port on the launch pad..

[POWER WITHIN USER]

The solid/liquid/gas cargo loaders are meant to transfer resources to or from cargo modules (which you fill up from mining in space or from using loaders on other planets).
To load fuel into rockets, you connect the rocket engine to a source of gas, such as a gas pump that's surrounded by CO2 at the bottom of your base.

[Ash//Fox]

The only building in the game that directly accepts gas bottles is the bottle emptier, you'll need to pipe the gas directly to the rocket engine.

[maestro]

Ok. I figured it was something like that.