Boiler Losing Pressure Following Mains Meter Install

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GazzaGazza said:
Thanks for this. It’s what I was thinking all along. But I’m just a bit puzzled as to why this all started at the same time as they put a water meter on the mains supply. Just a coincidence with some sort of leak somewhere that’s happened at the same time. Thanks for the info.
Click to expand...

Isolate boiler from system and see if pressure drops within boiler or once opened back up to system again. Try and do this for as long a period as possible, without using boiler. If it drops on boiler call WB out. If on system then looks like a leak has developed... Had any work done recently? Carpets or flooring laid?
 
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dilalio said:
Isolate boiler from system and see if pressure drops within boiler or once opened back up to system again. Try and do this for as long a period as possible, without using boiler. If it drops on boiler call WB out. If on system then looks like a leak has developed... Had any work done recently? Carpets or flooring laid?
Click to expand...

The only work done is the external water meter being fitted at the pavement by the water company. Only started losing pressure literally when they did it.
 
sbgasman said:
if the filling loop was passing the pressure would increase not drop to zero
Click to expand...

Would it not depend on if it’s passing slightly, enough to operate prv, but not enough to re-pressurise? I have witnessed such things.
 
dilalio said:
Where it would be noticed by the OP
Click to expand...
The rate of leak may be such that the "lost" water evaporates before the next "inspection"
dilalio said:
It's that new brand new system protocol again... PiFi!
Click to expand...
Brand new ? Leaks and floods have been using PiFi ever since the first pipe was invented.

Getting back to the menion of the water meter being fitted. It might be that removal of mains pressure while the meter was being fitted allowed the seals in some valves to "relax" and these valves/seals were then no longer effective against the pressure in the CH system.
 
undertrained said:
Would it not depend on if it’s passing slightly, enough to operate prv, but not enough to re-pressurise? I have witnessed such things.
Click to expand...
to operate the PRV (if it is working ok)the pressure would have to be 3 bar , and the op would have seen the leak outside and the pressure in the boiler
 
bernardgreen said:
The rate of leak may be such that the "lost" water evaporates before the next "inspection"

Brand new ? Leaks and floods have been using PiFi ever since the first pipe was invented.

Getting back to the menion of the water meter being fitted. It might be that removal of mains pressure while the meter was being fitted allowed the seals in some valves to "relax" and these valves/seals were then no longer effective against the pressure in the CH system.
Click to expand...

FFS! No. It didn't happen. A Big Boy Did Not Do It and then Run Away! :sick::notworthy::sleep:
 
D

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