Yes, but you just end up with a really crappy 1 stroke piston pump
Look at a Manometer. Fill a tube taller than 33 ft with water. Upend the tube of water into a container of water. The column of water will drop until it is supported by the air pressure (~33 ft). The pressure in the void in the top of the tube will be the vapor pressure of water (~0.5 psi). If you use an IV bag and a flexible tube, start with the tube full of water, the open end in the container of water and then just hoist the bag up a tree.
Lets assume you are going to use this thing to pull a vacuum. Assume 1 ft of that tube has the same volume as what you are trying to pull a vacuum on. If you make your tube 43 ft high the best vacuum you can pull will be 14.7/11 +0.5(Vapor pressure of water). There are loses and other factors but I don't remember what they are.
I actually saw someone try this once as a college project. They were able to pull a couple of psi of vacuum. They then showed a hand powered lab vacuum pump beat the hell out it.
A better system is a vacuum oil changer. I have a metal one leftover from my big boat days but it works like this http://www.liquivac.com/buyonline
I can get about a negative 7-8 psi per the gauge, if I work really hard and when I finish with, I can change the oil in my lawnmower