Joliet d. Lockport 25-22, 15-25, 25-21:Junior outside hitter Dylan Frederick had 11 kills and nine digs to lift the Steelmen (13-7, 3-4).
Corey Frain added six kills and five blocks.
Greg Frederick, Phillip Murray and Adam Hucek each had four kills.
"It was a good conference win," JT coach Jason Herrmann said. "We were able to finish the third game. It was a team effort. All 14 players struck together and the end result was sweet."
Hucek also had 22 assists and four blocks. Greg Frederick had five blocks. Josh Tucek had 11 digs and Dylan Frederick nine digs.