Hello John Not sure about your temperature reading (150 deg C is 302 deg F ). If your reading it is 150 deg F that seem a bit to low when warmed up. If you have the original relief valve fitted check that it still works !. You can loose up to a Litre of water to the ground from fully topped up and it looks low the next time you check it. kind regards Charles Gough
#6090

Hello John

Not sure about your temperature reading (150 deg C is 302 deg F ). If your reading it is 150 deg F that seem a bit to low when warmed up. If you have the original relief valve fitted check that it still works !. You can loose up to a Litre of water to the ground from fully topped up and it looks low the next time you check it. kind regards

Charles Gough