Quarter turn whb mixer tap

[officersmess]

I have recently refurbished an upstairs bathroom installing a single hole mixer tap with 12mm tails. The mains cold is OK but the domestic hot flow is pathetic compared with what it was with a pair of traditional taps. Is the problem the 12mm tails or the fact that the "quarter turn" design is restricting the flow?

Bill

 

[dancinplumba]

is the hot tank fed ? most modern taps are designed for mains pressure imo

 

[officersmess]

is the hot tank fed ? most modern taps are designed for mains pressure imo

The domestic hot is tank fed

 

[dancinplumba]

check for debris in tap, if ok then its the design of the tap, can you throttle back cold so you have equal flow, dont know what else to suggest apart from a pump imo