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How can you be so sure? What if op's working pressure is 3 bar and the pressure reducer is set at 3 bar?That’s not how it works
Discuss Adjusting the PRV to go to 4 bar..? in the Plumbing Jobs | The Job-board area at PlumbersForums.net
How can you be so sure? What if op's working pressure is 3 bar and the pressure reducer is set at 3 bar?That’s not how it works
That's what I thought too but op installed a new water main, had too great a flow rate, installed a prv and now flow isn't so great. If turning the prv up increases his flow to what he classes as desirable then it's an easy fix
How can you be so sure? What if op's working pressure is 3 bar and the pressure reducer is set at 3 bar?
Yes I know that, and I'm not trying to argue with you about the difference of flow and pressure.Flow is impacted by correct pipe sizing, obstruction or restriction in the pipework and can also be controlled by reduced lpm sanitaryware
As we’ve said though flow and pressure are different. Alright ignore pressure ask the water board what you should expect. If you are a way off that it’s time to start testing.
Is the strainer filter on the prv blocked?
If you rig up a tap or pipe straight after the stopcock what do you get then flow wise??
What does the incoming reduce to after the stopcock, 25-??
The PRV is brand new, is it likely the filter would already be blocked? I haven't experimented with running a tap straight off the mains stopcock but it's a good idea.
After the stopcock it reduces to 10-11 l/m, up to 12l/m if running purely off of the cold mains.
The water bouncing out the sink shouldn't have been affected by installing a pressure reducer as technically these restrict standing pressure, not working pressure (or at least thats my understanding of them). Basically the standing pressure of your system will be exactly the same as before you installed your new water main so you don't have anything to worry about regarding tap rating etc. I'd turn your pressure reducer up to max, then run the tap and slowly turn the valve down until you achieve your desired flow rate.
Off the stop tap to the prv what size pipe
Also what size is the prv 15mm
Pipe size off the prv to the boiler ?
15mm for both - the distance from the stopcock to the boiler is maybe 3/4 metres.
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