Data Center Process Water Tank: Operations Buffer And Supply Resilience A data center process water tank is the operations buffer that facilities teams rely on to keep cooling resilient when the municipal supply falters, a recovery batch is delayed or demand spikes. It holds the water the facility consumes - cooling-tower makeup and humidification - and decouples the cooling loop from supply variability. Center Enamel supplies Glass-Fused-to-Steel, Fusion-Bonded Epoxy and