Swan head mixer tap leaks

[Sharron floyd]

My Swan head mixer tap is dripping, I have changed the washer and still dripping. I have noticed that it doesnt drip when the dishwasher is on. Thoughts

 

[Keefy]

Maybe it's the other washer which needs replacing. It's possible for a minor drip to cease when another draw-off is on due to the negative pressure it creates. If changing the other washer doesn't solve the issue then please come back and let us know.