Plumbing!

This is underneath my kitchen sink. Today I discovered that it was wet in the cupboard and there were drips from around the ubend. The dishwasher feeds in before the ubend, so no sink and no dishwasher either! We've tried to tighten things up with no success so we await the plumber sent as part of our pipes and drains contract with Scottish Gas. We're not frail or vulnerable and we're not an emergency, so Tuesday morning the plumber cometh!