Slowing hot water tap

[Broadback]

When I turn on my hot a water tap as the water runs hot so it runs slower, so I have to keep turning it higher. I have a combi boiler, is this normal? If not any ideas on the cure please?

[John Rumm]

Do you mean that the flow rate falls all by itself as the water warms up?

If so then yes that is normal - but depends a bit on the type of tap. It is caused by the tap closing mechanism heating up and expanding slightly

- this will force the washer closer to the tap seat in effect turning it off a bit.

(this is distinct from the normal combi boiler problem of the water getting colder as you turn the tap on more)

[Broadback]

That is exactly what I meant, thanks John.