Glycol Loop Flushing - NWI

The contractor shall provide all labor, materials, supervision, tools, safety equipment, testing instruments, transportation, and incidentals to drain, flush, clean, and refill two closed-loop glycol heating systems. Work includes sampling existing fluid, calculating system volume, draining fluid to storage totes, coordinating disposal, flushing the loop with deionized water (four complete loop volumes per flush), cleaning Y-strainers and feeder tank, verifying glycol feeder tank function, refilling with new propylene glycol heat transfer fluid, and testing concentration with a refractometer. The contractor must also provide pre-flush fluid sampling reports, system volume calculations, documentation of flush cycles, final system condition reports, refractometer concentration readings, and disposal manifests. The work shall be performed at the Omaha VA Medical Center, 4101 Woolworth Avenue, Omaha, Nebraska 68105.