Water meters

[PhoenixServices]

Quick question guys. Got a customer with low working pressure on their water main. 4 bar standing, 0.5 bar working. It's got a 30kw combi installed on a half inch iron main...
I've checked for blockages/ turned down stop cocks.
What sort of working pressure will the water board guarantee (is it 1 bar or is that standing)

second question
what size connections are on the water meters? Plus we are allowed to work on them after the outlet aren't we.

 

[Ermintrude]

After outlet fine. Ofwat DG2
Minimum spec 1 bar 9lpm at external stop tap.

 

[PhoenixServices]

Cheers I was getting 0.5 bar at 9l min
time for a supply upgrade then

 

[AWheating]

You will have to ask the board to come and check at the boundary what you have. If it's on the property side your customer will either have to pay for a new main or you could consider a pump on the mains.

 

[PhoenixServices]

Cheers AW I was going to phone Thames water anyway so will arrange a visit at the same time

 

[Reg Man]

Restriction in the supply shouting out.

 

[TBServices]

If it's 1/2" iron, the chances are its furred up inside.

Water board will check the boundary and install a new stoptap as a matter if course (at least YW do) but the problem sounds like it will be after.

 

[Ch4 plumbing]

Could be a faulty check valve in the water meter?

 

[Mike Jackson]

Half inch iron main will be more like an eighth. New main required.