This water rocket launcher lets you do just that ... If you’ve already got a compressor and some empty 2-liter bottles you might also pick up some extra PVC to make this pressurized water ...

Easy to assemble metal water rocket launcher with a 125 PSI safety ... StratoLauncher IV Ultimate will propel a 2 liter plastic (PET) soda pop bottle over 350 ft. in the sky.

In this case, though, we’ll respectfully disagree with [Zach Hipps] assessment of his remote-controlled soda bottle rocket launcher ... flange on the necks of 2-liter soda bottles.

If the rocket does fly but not very well, there are things you can adjust. The amount of water makes a big difference. Start with the bottle one quarter full (500ml water in a 2l bottle ...

If the rocket does fly but not very well, there are things you can adjust. The amount of water makes a big difference. Start with the bottle one quarter full (500ml water in a 2l bottle ...