This is for a 1997 51' Sunseeker Camargue. We have a strong odor and want to investigate hoses, sensor wires connections etc. but can not locate the Tank. From schematics it appears to be under the floor at the bottom of the stairs to the salon. The previous owner had a new hardwood floor installed and I am wondering if the access hatches were covered over, or were the stairs suppose to be removeable. The same goes for the water tank access (there is none). Although 4 other access hatches were cut into the new floor for pumps etc.. Being a 1997 we are thinking it could be hose permeation or leaking at the top of the tank.