We just purchased a rain shower head. Periodically, there is a discharge of water that comes out of the shower head even though the control is completely off. It seems like water somehow accumulates in the pipes and the when there is enough volume, it is released through the shower head.
Our installer said that this happens with "all rain shower heads".
Is this "normal"?
What can be done to prevent this since it seems to happen at night when we are sleeping?
Thanks,