Hello! This is my first post/DIY project, so apologies in advance for any mistakes made in posting.I'm trying to build a portable shower that I can carry in my trunk for beach days, and I'm trying to figure out the right pump for the project. I tried googling about it, but unfortunately it seems my mind is not very physics oriented in this matter. The approximate diagram is this (pardon my drawing skills)http://bit.ly/2SJ48bh, I want to fill a water cooler bottle with water, and pump air inside until the pressure pushes the water up from the showerhead (height will be around 7-8 feet, probably). Does anyone know how I can calculate the PSI needed for this? Thank you! via /r/DIY http://bit.ly/2RYapeE
