First time I see that but should work OK.
On the other hand many have done that using electrics like wiper motors or small ATV winches, basically any low RPM high torque 12 volt motor.
DC motors are easy to reverse by simply reversing the pos and neg.
Also far less $$ when you consider orbit motor, valve, hoses and fittings etc.
In fact many factory blowers now offer electrics as an option on smaller units.