The corner RGA tree was rebuilt in order to match the standardized trees on other HAM chambers. This included reducing the amount of elbows and piping, removing calibrated leaks, installing a 10 l/s ion pump, and installing a full range gauge that can be read by the new PrismaPro RGA head. This volume will pump down over the weekend, and we will confirm the connection/functionality of the new RGA to the control room RGA computer. Once confirmed, the entire RGA tree will be baked at high temperature to clean the volume for use. The small area around the RGA tree (output tube on +X side) has been sectioned off with caution tape, please avoid the area.