leaks

[d4c24a]

we done a job earlier this year in maidenhead ,it involved laying 1200 metres of 315 watermain
with new fire hydrants , flow meter , and links to existing watermains
when it came to testing and commissioning the main it would not hold a pressure test of 16 bar water pressure
we narrowed it down by shutting valves and started to excavate the 4 possible joints that could leak ,on digging out the last joint a tee to a flow meter we found the problem it was a flaw in the casting of the tee and not our workmanship
a few pictures
cheers graham

[craigdonaghy]

I knew it wouldn't have been bad workmanship you just can't get good pipe manufacturers anymore

Cheers

craig

[martyn williams]

Hello Graham
Have you ever got a soaking whilst working on a water main job? 16 bar is pretty high pressure.
Martyn

[d4c24a]

hi craig yes i think these tee,s are made in brazil word is we are changing to gps pipe rather than uponor
martyn i have got a bit wet once or twice 16 bar is for testing ,normal working pressure on that main would be around 5-6 bar
cheers graham

[craigdonaghy]

Hi Graham,

What do you use to test the mains to 16bar mate

Cheers

craig

[d4c24a]

sorry craig only just noticed this we use a petrol driven pressure washer
we have a man with a van that goes around doing the mains testing and taking water samples
cheers graham