In article , Roger Mills writes
>
>> If you have access to the water pipes try fitting this in place.
>>
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>It might help.
>
>What worries me a bit is that a sudden demand for water from - say - a
>cistern will reduce *both* the cold and the hot flow. So even if you balance
>the pressures, the reduced flow through the combi may result in a higher
>outlet temperature - so the mixed temperature will *still* rise.
Think you're right Rog, bugger.