Hi, i have a vanity unit fixed and ready to accept the sink, i have the flexi tails , what i would like to know is can i fit the flexis to the taps via the horseshoe connectors and fixing bolt tighten them with a spanner then drop them in to the unit or do they only need to be hand tight . Its seems obvious to do the pipes and fitting before i drop the sink in i know just thought i would find out before i fit it. Thanks