I plugged my charger in and lifted the back hatch just to make sure the lights were on and noticed the primer bulb was flat. I thought for a second and turned my gas cap and the air pressure coming back out was pretty significant. Think of some cars when they do this. After the pressure was relieved the bulb was inflated again. I have never seen this on my boat before and thought the little plastic vent next to the fuel cap was there to not let this happen. Any ideas on why?
Thanks in advance
It's a Skeeter boat