Where do you get a water bottle rocket pump?

Question

like i mean how do you launch it? would a hose work or what do you need?

Answer 1

I used 2 liter soda bottles, a cork and a car air pump (12volt). Fill the soda bottle 1/3 full of water and use the car air pump to pump air into the bottle through a tube through the cork. Eventually the bottle will pop off the cork and shoot upward. It is best if you make a launch stand to hold the bottle pointing up while the air pump is turned on.

Answer 2

i had one when i was little. till it landed in the neighbor's yard and never got it back. waaa! but the one i had you fill the rocket up with water then put it on a pump. that pump would put air into the rocket then it would take off pritty high.. they should sell them at a major toy store such as toys r us or a dollar store during the summer.

Answer 3

a hose, a partially filled plastic water bottle / 20lits and a pump