My T500 column did that from day dot, the pressure of a few litres of water pushing down is much more than the very low pressure vapour in the column during a run.
Check next run with a mirror that there is no vapour leak - but I'll bet there isn't mate.
If you do have a leak, It's easily fixed. But i wouldn't go to the bother unless you do actually have an issue.
to seal the cap.
1. Take out the packing
2. Uncrew the cooling outlet\thermometer housing anti-clockwise.
3. Unscrew the 2 condenser retainers (4 Philips screws)
4. Pull the cap off.
A few wraps of PTFE tape, and rebuild.Statistics: Posted by Capt-Cudellez — Wed Dec 14, 2011 10:40 pm
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