Should water come out when bleeding a radiator?

Yes, it is perfectly normal for water to escape when a radiator is bled.

You’ll likely notice some drips emerging when initially turning the bleed screw in an anti-clockwise direction. And water would pour out once the air was released, if the valve was to be opened fully.

However, completely opening the valve should be avoided. For a more detailed insight into the best practice to follow when bleeding radiators, take a look at our Advice Centre guide, How To Bleed A Radiator.