Mains water adapters

Remus

what do people recommend as the best way to get continuous mains water to the caravan?  I've seen adapters for aquarolls which would be ok.  I've also seen adapters that take water direct to the caravan, via the pump socket, and so the aquaroll wouldn't
be needed At all.  Our pump socket is for a Truma Ultraflow.  So folks, which is the best?   All advice appreciated.