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Did you flush any new pipework and the tap before installing it. Sometimes you get a blockage which reduces flow. No idea where you are but that flow looks like it would be well below average.
I know it sounds obvious but have you replaced any valves and checked everything is opened up again. I've never seen a tap like that make a lot of difference in flow rate.
Airhead-
Haven’t flushed the pipes at all - would that just involve turning everything on and then switching off the mains stop valve? I’ve added an extra service valve for accessibility but that’s it.
I’ll triple check that the isolator valves are all straight later for sure - huge difference in flow rate compared to the utility room next door too. It’s just weird that it’s both the hot and cold seem to flow at the same rate.
seager
Finishing up with our kitchen install and it turns out our water pressure is basically too low for a pull-out spray tap. Giant Belfast sink and half of it I'll never be able to spray down to clean easily.
This is it at full tilt.
Edit; Jesus, are my wrists that hairy.