stopcock• Cold water plumbing From the householder's mainstopcock, the water is taken by the rising main.• It is fitted just above the main stopcock.• The drawing on the oppositepage shows a mains stopcock with a draincock fitted above.• A water conditioner is fitted to the rising main just above the mains stopcock.• Those making this journey should ensure that the stopcock is closed and all electricalappliancesswitched off before departure.• Tillman twisted the stopcock on the bottle of gas that fueled the stove.• It is important that you know where the stopcock is and how to turn it off.• This stopcock may need a specialkey to turn it on and off.