Instrument cannot Pump down because there's oil in the hose.
What kind of MSD are you referring to?
Agilent 5973 MSD. Thanks for the concern. Problem has been resolved by draining the oil from the hose over night. Reassemble the hose to the pump and restart. The problem was there was a leak which was not detected, the pump was allowed to continue to work for some hour, thus sucking in the oil.
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