My bath taps are the variety with a pull-up mixer to send the water through to the shower head. Although the water comes out from the shower head, the mixer pull-up lever only achieves the task when it is positioned somewhere between the top and bottom setting (i.e., when fully pulled up, it should divert the flow to the shower head; instead it still sends it through the taps). To get any water out through the shower head, the mixer needs to be nudged back down until more water comes out of the shower head than the taps (there is always water running from the taps, whatever position the mixer lever is placed in). As you can imagine, this is a very frustrating problem each morning and it seems to be getting worse!
I hope someone could advise whether or not this is likely to be simply a washer problem. If so, would I need to turn off the household water supply in order to deal with it?
Thanks in anticipation of any advice or suggestions.