For sparge arm/recirc solution, here is what I did:
Bought one of these: 1.5'' TC to Male Ball Lock Quick Disconnects (BLQD) with Interior 1/2'' FNPT
one of these: Loc-Line - 51837 Coolant Hose Circle Flow Nozzle Kit, 16 Piece, 1/2" Hose ID: Cutting Tool Coolants: Amazon.com: Industrial &...