Ok got this spa for $50, couldn't pass it up. I have never had one before, never worked on one before but I felt I could fix her up and make a nice present for my wife. I think its a 2002 model, the panel says LC500 series. I have rebuilt all 3 pump motors and tested them and they run smooth and clean so they are good to go. Now that I have the spa in place, I need to find out what those 2 things at the bottom are and if they are supposed to be draining like they are now. When I try to fill it (or it rains like it did today) the water travels through these 2 things with the black covers at the bottom of the spa. I removed the black covers and its a pretty large pipe. I see no way to close them so it can be filled. I see water pouring out the bottom of the spa in what looks like where those 2 pipes would lead. So what are they and what are they supposed to do? Thanks so much for the help!! Also, in the last pic Im trying to figure out what the thing circled in red is. I think its a power diverter?? But its broken.