Greetings all. New on here but hoping for some assistance. Our 2016 MLT580 has started leaking at the mixer tap. Found a hairline crack down the stem of the spout. Look as if I need to remove the sink to replace. There is a black rubber seal around sink. Any ideas how the sink is removed please. Disconnecting the waste pipe first of course. I think it is a Riech tap but can't identify the model. A new spout would do if I knew where to get one. Thanks for your assistance.