The broken hose was replaced.  An attached picture shows the burst end of the hose and the fitting that
goes over that end.  The two other attached pictures shows the hose, end on.

    The turbine flow sensor for head 4 was replaced.  Whilst there was no problem with this sensor per
se, its output was somewhat noisier than the three other sensors.  Replacing it now seemed like a prudent
thing to do.  A visual inspection of the flow sensor showed what might be a small build up of material
around the turbine.  If true that would in part explain the noisy signal from this sensor.

    The bulge in the crystal chiller return leg hose section in the chiller room was removed.

    The resonator optics of the high power oscillator were inspected for dust and water marks.  The 4f
lenses for heads 3 and 4 were drag wiped.  The lens in front of the reverse direction power monitoring
photodiode was drag wiped clean.  The fibre bundle ends are being given more time to dry out.




JeffB / Peter