mudbuggy
1/2 ton status
When I was playing with my set up I left mine off the first time. The pump didn't want to spin in time with the belt, it was slipping pretty bad. Once I installed that then it built pressure!!! If you don't have it then the pump has to overcome all of the pressure that is there. Granted if your leaving the tank uncapped or unplugged I would say go for it! Worst could happen is a loud air sound!!!!!!