I've had a problem with my windscreen washers for some time.

The rear wash/wipe is fine, and the front wipers are ok, but the screen wash/wipe has to be held in the pressed position for ages before it activates.

If I put the radio on AM, I can hear a click indicating an electrical contact being made when I press the washers, but nothing happens, no pump noise, no wipe. After numerous presses, it all suddenly starts working.

My guess is it's the switch, but is that a DIY replacement of the whole wiper stalk?