Request for Change of Equipment/Crew

My boat is taking in a lot water every day. We noticed after day 1 and my coach tried already 2 afternoons to find the leak and fix it. It was impossible so far and every day the water is more. I have a video from today after the racing and showed to the regatta measurer. Keep in mind all this water was with just one race. The water was so much today that I could really feel it especially on the downwind. I would like to change hull since the class is one design and every hull is identical because I don't feel it is fair for me to continue in the regatta with a defective boat. Thank you!