Afternoon everyone, I recently had my seat redone and placed the seat on the ski and the latch broke in my hand while trying to release it. Any clue on how to get the seat off without having a release latch? TIA!!!

I posted in the picthe last time I was writing I’ve seen this hose disconnected that I have never seen before since I bought it can somebody please help me I need to know where does it go to and where does it connect to please and last time I when riding my jetski was off balance what does it...