I recently just inherited a 1995 cobra that was my grandfathers. After getting it in the water for the first time in probably a year it ran great but after pulling the plug out afterward it seemed like there was quite a bit of water then I noticed what I believe to be the live well intake had a bolt and some plastic shoved In it to plug it. I’m guess there is a plumbing problem or a leak from this spot. Can I just get a rubber drain plug to plug the hole until I can get it in to the boat shop to look at it?