Hi,
We've recently had a new sink fitted in the bathroom with a monoblock mixer tap and it is extremely noisy, kind of like a blowtorch sound and you can hear it all over the house. It's much worse on half open and when it's fully open the noise goes away (almost). Cold water is really bad, hot not so much.
We are on a combi boiler. Previous tap a mixer too, but copper pipes straight into the tap. New setup is isolators on hot and cold then flex tails into the tap.
Does anyone have experience of what mighht be causing this and what can be done to stop the noise?
Much appreciated!