I am attempting to replace my starboard water tank hose from the tank to the rail under the sink. There is an access hole close to the lower aft inboard corner of the plastic tank that shows the hose being directed in front of the icebox going aft ,but even with an illuminated borescope I cannot see the direction of the hose. There is also an athwartship stringer just aft of the hole that the hose either goes through or runs in front of it going over to the rail. Has anyone replaced this hose? I do not want to cut through the floor in front of the icebox unless I absolutely have to. I have noticed when replacing other water lines the tolerance of the drilled access hole and the diameter of the hole is very tight and would prevent pulling the hose through from either the tank end or the rail end. Any ideas?