Hi
I have a garden tap recessed into a concrete wall.
I have a stop valve fitted below ground between the water supply and the garden tap. The plastic pipe runs up the wall to the tap from the stop valve.
In the winter we planned to close the stop valve and open the tap allowing the water to drain.
By leaving the tap open I figured that the water remaining in the pipe work rising up to the tap if it were to freeze would have room to expand and thus prevent the pipe work from possiblly bursting.
Is this correct ?
The garden tap currently has a building in double check valve. Would this stop the water from being able to expand as it would close when the stop valve was closed as there would be no pressure behind it ?
I have a garden tap recessed into a concrete wall.
I have a stop valve fitted below ground between the water supply and the garden tap. The plastic pipe runs up the wall to the tap from the stop valve.
In the winter we planned to close the stop valve and open the tap allowing the water to drain.
By leaving the tap open I figured that the water remaining in the pipe work rising up to the tap if it were to freeze would have room to expand and thus prevent the pipe work from possiblly bursting.
Is this correct ?
The garden tap currently has a building in double check valve. Would this stop the water from being able to expand as it would close when the stop valve was closed as there would be no pressure behind it ?