Drain Valve Plastering Machine Water System

The drain valve is positioned at the base of the brass dome assembly within the pressure reducing valve and water bottle system. Featuring a brass thread fitted with a nylon washer for reliable sealing, this component ensures a watertight connection that prevents leaks during operation. The green grub screw operates manually—simply turn by hand to open the valve for drainage or close it to maintain system integrity. This straightforward design allows operators to quickly purge water from the system, essential for maintenance routines and preventing mineral buildup that can compromise spray consistency. The combination of brass construction and nylon sealing provides durability across regular professional use, making it an indispensable part of your plastering machine's water management system.