I have a dribbling tap and need to change the washer. The trickle it's causing outside is annoying my neighbour so I need to sort it ASAP. Trouble is, when I went to turn off the water at the stop cock, I couldn't. The handle turns but nothing happens. Obviously this needs to be seen to, but in the meantime, am I OK to change the washer with the tap still dribbling? I know a bit of water will come up, but it won't be a total geyser, will it?
TIA.