'91 2100 CC- Below Deck Well Connections

[OL'PAL]

I just picked up my first Pursuit two weeks ago. Overall it's in great shape, but like most boats that have been through several owners, there's a few things to sort out.

One item I'd like to sort out is the stock/factory below deck live well/bait well. I'm referring to the one that's ahead of the motor well and behind the leaning post (see pic). It doesn't seem to be plumbed. I'm assuming it was originally plumbed like a normal live well with one of the (2) holes being the incoming from the pump and the other a self-draining set-up with an overflow tube.

My questions are,

1. Which hole is the inlet and which is the drain?
2. How do I access the inlet side? I expected to find a 90 deg. elbow with a barbed end that would go to the live well pump.
3. Where does the water discharge to? I drained a little standing water out of it and I got nothing outside the boat.

Thanks in advance,
Marty