2004 460 Sundance has a bilge pump in the bilge under the mid stateroom which is accessed via a hatch cover when the sofa bed is moved forward. Where is the bilge water coming from??
I installed an inspection port on the lid so I can clean it without removing the lid, which has 8 very difficult-to-reach bolts requiring one to be a contortionist. Your sump is much different from mine and looks more user friendly.
Jaws,Mine has an alarm also. Given the large limber hole in the bulkhead aft of the sump (which had been leaking but is now fixed), I think the sump overflow is the most logical answer. The water heater checked out fine. Unfortunately, the float sw...