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- 13 Mar 2021
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HI, i haven't come across the potential issue of the cross over of the mixer valves or what that means so apologies but the inlet group has already been changed once to try in case that was causing the probem. THe plumber said there was slight limescale build up (we are in a hard water area but it has only been set up for 6 months) but we had exactly the same issue one it had been replaced so assume the inlet group is all fine.
I have felt all pipes in a morning for goodness knows how long to try and identify what is happening.
I'm not sure if you have seen the photos but there is one pipe going in to the combination valve (which i assume is the cold supply) and then another coming out of the back (which i assume is the balanced cold). I have held both of those pipes when a tap is turned on and I haven't felt a glug of hot go through but you don't feel the freezing cold water going through them straight away. They remain a tepid temperature before they go really cold
However, i have then just tried them and the same pipes are currently pretty cold, i then turn the cold tap on the the same pipes get even colder but there was still a bit of warm coming out of the taps. However, the long cold inlet pipe to the cylinder is still pretty cold and did not change temperature when the cold tap was turned on.
I have felt all pipes in a morning for goodness knows how long to try and identify what is happening.
I'm not sure if you have seen the photos but there is one pipe going in to the combination valve (which i assume is the cold supply) and then another coming out of the back (which i assume is the balanced cold). I have held both of those pipes when a tap is turned on and I haven't felt a glug of hot go through but you don't feel the freezing cold water going through them straight away. They remain a tepid temperature before they go really cold
However, i have then just tried them and the same pipes are currently pretty cold, i then turn the cold tap on the the same pipes get even colder but there was still a bit of warm coming out of the taps. However, the long cold inlet pipe to the cylinder is still pretty cold and did not change temperature when the cold tap was turned on.