[Lured Away]

So just purchased a 37 Open and trying to figure out a couple things and wondering if anyone could help.

1) The "Gen Running" light on the dash doesn't activate, any idea where the sensor or activation switch for this is? Bulb seems to still work.

2) There is a single light switch on the right side up high just inside the companion way, any idea what this is for?

3) There are two freshwater pumps mounted under the stairs, the upper one doesn't work but we still have good pressure. Any idea why they installed 2 pumps? It appears to be a single speed pump, could I replace this with a mutli-speed/on demand pump or would the different pumps not work well together?

4) The drain hoses for both fish boxes appear to just drain into the bilge, is this correct? On my 31' they drained overboard.

Thanks