A buddy of mine has a 2006 Nitro 901 CDX. He is having problems with taking on water. Looked over really good put no external signs of leaking. The leak is filling bilge area quickly. Wondering if it's a hose. He was able to check all pumps and fittings around the pumps and no signs. He was able to remove panels to access that area. Anyone had these issues or know how to access the hoses where they first inter the boat? Thanks