Have a drip coming from under boiler where there is a small rod, (leading to temp gauge on front of boiler panel '+' & '-') connecting to some sort of valve/pipework. This must have been happening for some time as there's slight rusting to that area.... can anyone help....thanks

Rav, December 2008

These usually leak from the stuffing box thermostat gland.Its a small o ring that wears over time.

Tony S, December 2008