The first plot on the first page of the figure shows that the seismic signal from the instrument air compressor was reduced today by seismic isolation. But the huge DARM noise, with close to the same periodicity, is still occurring. Our manipulation of the on and off pressures for the compressor, and the new GV5 and 7 pressure settings, see previous entries, did not seem to affect the DARM noise – see end of first page time series. This and the observation that the noise does not occur at exactly the same part of the compressor cycle every time, is evidence that they are causally unrelated, though they have similar periods. On the other hand, the second plot seems to show that the period of the DARM noise changed with the period of the compressor a couple of days ago…. Chandra, Kyle and I were in the LVEA from UTC 23:40 to 00:06 on Nov 1 and 2.