I have 2" grey pvc conduit running from my basement underneath a patio and terminating vertically from the ground a few feet past the edge of the patio (in the dirt). I want to install an outlet on the stone wall at the edge of this patio. I do not know how to properly return the wire from that open 2" vertical conduit back to the wall a few feet away. I assume I need a junction box on the existing conduit, but can't find one with a 2" inlet. I would like to keep the connections buried if possible, return with a smaller conduit to the wall and up to a mounted outlet box (weatherproof). Any suggestions about how to manage the conduit connections from the vertical pipe?