HI All,

I have had installed a IS Trevi TT valve ie. shower mixer/thermostat -
the instructions for the face plate (Cone) refer to a water saving
stop point viz. "The flow control has an economy stop button. If the
knob is turned as far as the stop it only provides 50% of the its flow
rate. Should a higher flow rate be desired press the stop button and
then turn the knob further". This is confirmed in the other language
descriptions with the product. If this doesn't exist why is it in
there?

This means the flow knob only turns a quarter by default (in my case).
But the stop button on my Cone faceplate knob doesn't unlock at a
quarter turn - but I assume it should as the instructions say so - and
the flow rate out of the shower is appalling. There is no flow rate
problem at the adjoining sink. Its a fully pressurised system and the
show head has been chosen specially to avoid flow issues as it has a
minimum pressure of 0.1 bar (rain type shower).

Has anyone got this valve? Do you know how it should operate?

Regards, Tom