Serviced again. Diagnosis: rubbish in regulator due to water in tank again.
We suspect there is a leak in the top of the tank somewhere, so I'm running the drain tap again (and getting water out again)
EDIT: half a pint out and I've hit oil. Banging the drain pipe with a rubber hammer did wonders for the flow rate :-)
We suspect there is a leak in the top of the tank somewhere, so I'm running the drain tap again (and getting water out again)
EDIT: half a pint out and I've hit oil. Banging the drain pipe with a rubber hammer did wonders for the flow rate :-)