In the bilge of my Edgewater 155 CC, there are what appear to be hundreds of tiny pieces of shattered material that appears to be plastic. It could be glass but I think it's plastic. Concentrated mostly in one area just below where the fuel filter is. In the bilge there is only a bilge pump, fuel filter and a small inline filter for the aerator and they all look intact. Garage kept, used mostly in salt water, owned for years & always keep the bilge area mostly spotless. Never seen before and I am completely puzzled. Would anyone have any ideas ?