You could check yourself on a dry day. Put a hose in the drain and see if the water ends up in the sump pit.

I suspect it does not lead to the sump pit. It's probably just foundation drain water. If it did, you would have so much water during storms that the pump wouldn't be able to keep up. Adn if you ever had a power outage you'd be flooded, for sure.

This post was edited by homebound on Mon, Jun 24, 13 at 12:29

That's a good point homebound, I forget just how much water a roof would collect.

Now, I just need a dry day...