wrote in message
...
Just another thought:
Turning the supply valve or tap down isn't really a solution if the
pressure is as high as you suggest.
Clamping down a valve may reduce the flow but it won't change the
pressure. When the flow stabilises, the pressure will be the same.
It's a bit like volts and amps. "Volts is pressure, Amps is flow"

Please no flames...... the OT has a pressure (volts) problem not a
flow (amps) problem so squeezing the flow won't help.

I remain curious about the pressure/head being reported in the
original post. I suspect that most providers in UK don't supply water
much above 3, 4 or 5 bar.

EP

What really confuses me is that there are plenty of houses around me on
higher land, none are more than about 20 metres ( - 2 bars) higher.

I could understand if pressure was (say) 5 bar, but cannot understand why I
see 10. hence the original post.

As I said previously first stop is to double-check the instrument. I'm
wondering if I can bodge up a connection to do this pneumatically at the
local garage.