Hi I've just replaced my utility room basin and tap and find that the cold tap (fed with mains pressure) is very noisy, especially when half open. Its the sound of the water, but I don't remember the old tap making anywhere near as much noise. The new tap is a monobloc design with a lever, rather than rotary. The plumbing is standard 15mm soldered joints except for compression fittings mating to the tails screwed into the tap itself. The mains water pressure is good but I wouldn't say excessive. The room is on the ground floor. The kitchen tap, also on the ground floor, doesnt suffer from the same problem. Any ideas ?