straight suction on carpet
There are battery power nozzles you could get for that Eureka so it could clean carpets better. For carpets, you need a spinning brush, a straight suction tool really won't work, and the spinning turbine nozzles are noisy and have issues with the turbines getting jammed or clogged. If you are goin'g to use a canister to clean carpets, you need a motor driven brush, I'm actually surprised so few backpack vacuums don't include an electric power nozzle or at least the connection for one but instead include a straight suction carpet tool instead.
Mike