Live in a bungalow, main sink, 2 hand basins, 2 showers. Hot water only coming out of main tap. Think there must be air in system so need to know how to clear it. Thank you.
you need to turn on the tap that has no water coming out of it, run a hose from a working tap right up into it, and back fill it with water till it hits the air lock, and then it will work,
