| 0320 | Cleaned nitrogen cold trap 2 a couple of times and left it to evacuate for three hours. Pump mixture into dump in preparation for swapping traps. |
| 0435 | Closed valves from nitrogen cold trap 2 to He-4 pump, and placed it back in nitrogen bath. |
| | Pressure in dump 687 mbar: appears as though mixture is clean. Close all valves on IGH and nitrogen cold trap 1 speedivalve. Remove nitrogen cold trap 1 from nitrogen bath. Open up line from cold trap 1 to He-4 pump. Allow cold trap 1 to warm to room temperature while being evacuated. |
| | Fill N2 cold trap full. Commence cryocleaning mixture through nitrogen cold trap 2. |
| 0535 | Install updates on DAQ computer and restart. |
| 0555 | Resume mixing chamber temperature log on DAQ computer. |
| 0620 | Cleaned nitrogen cold trap 1 twice. Leave to evacuate. |
| 1020 | Closed V11A, V7, V2A and V5A. Put cold trap 1 back in dewar. Refill dewar and play the waiting game (1 hour). |
| 1130 | Begin pumping mixture to the dump. |
| | 687 mbar in the dump. We want 325 mbar to circulate, so we should leave 362 mbar in the dump. Ambient temperature is at 23.9 C |
| 1230 | Begin circulating the mixture. |
| 1310 | Increase V12A by 1%. |
| 1450 | Fully open valve V12A. Manual condensation procedure complete. Mixture left in dump 362 mbar; therefore mixture in fridge 325 mbar. |
| 1830 | We don't seem to be able to get circulation going. Pressures in G1 & G2 at 202 mbar and 184 mbar respectively, and have remained so even when valve V6 completely closed. There is almost certainly a blockage. Pump mixture back into dump by opening valves V5, V6 & V9. Close valve V13A. |
| 2225 | Fill N2 cold trap full. |
| 2255 | Stop 1 K pot. Switch thermometer. Turn on mixing chamber heater, power 5 mW, to recover mixture at a faster rate. |
| 2335 | Increase mixing chamber heater's power to 10 mW. |