Install Water Mizers (or a similar water-saving product) on sterilizers and autoclaves.
A Water Mizer is a device used on sterilizers or autoclaves to monitor the temperature of the system and apply cold water only when needed. Using this device, or something similar, this can save 40-50 gallons of water per hour on autoclaves that are not designed with water-saving features (which may be found on newer autoclaves).