Water Coming very slowly through mixer taps

[gettpraveen]

I newly installed a mixer bath tap with hand shower, only the cold water line is currently active. but water flow is very less, even if i open only cold water. it takes one hour to fill a bucket of 15 litres. Is there is any problem because of only one line is active?

 

[Robiow70]

What was the flow like on the cold before the new installation?

Are the isolation valves turned fully open if fitted?

 

[gettpraveen]

flow is very good, if we remove the mixer tap or even we tried to fix the ordinary tap(single lever) water flow is very good. only through the mixer taps, water flow is less. i got three mixer taps in same brand, tried fixing other two also, but the result is just the same

 

[plumbermannot]

Might be high pressure taps? Check with the manufacturer and compare with your available water pressure.