The application is a liquid zone control system used to control reactor power. There are 14 compartments of demin water positioned in the reactor core to control neutron flux. part of the system uses a bubbler level system to measure level in the compartments. the bubbler lines are only 1/8 inch in diameter. There a four more connections to the zone: Water inlet, Water Outlet, Balance Gas Pressure, and a vent. The compartment is tubed to the main gas/water system via 3/8 inch lines. Could anyone suggest cleaning/flushing equipment to clean out flush suspected debris in the system.