While the 1A blocks over the T1 area were removed last week the opportunity was used to investigate an air leak on the amplified air system discovered on August 11, 2014.

The leak was found to be coming from a device related to the septum polarity switch located behind (south of) the septum power supply on the 1A blocks.  This device is not in use, so the amplified air to the device was disconnected by plugging the relevant branch of a brass 3/8" Swagelok T fitting in the area.  This stopped the leak, and the air amplifier is cycling at usual speed after being restarted.