See if the float works in your fuel. I assume you have gas. I had senders that would read empty on one side and slow to show full on the other. They would float perfectly when tested in water but sink like a stone when I observed them in the tank lo...
Yes. Stock table is way too small. I made one out of oak. 7 coats of marine varnish was the most time consuming work. Simple project. Now 4 can dine in comfort.
On my 38 DA there are some small tabs and some screws on the bottom of the seat back. remove the screws, and the cushion lifts strait up. The bolts with no nuts holds the top of the cushion in position.