Low hot water presdure

[Indi_s]

Hello people hope your all well

Need some advice . I had a new boiler installed got a MAIN eco elite combi boiler . I previously had a glowworm boiler.
Issue I have is since the new boiler has been installed the water pressure for hot water has significantly reduced ! With the glow worm boiler the water pressure if anything Was too much .

Any ideas what could be causing this does a tap on the boiler or something need opening more . I have attached a pic

 

[Aquarius]

What glow worm did you have? Could be the restriction set by the boiler. Check your stopcock is fully open. All valves underneath appear ok.

 

[Knappers]

Unlikely pressure, its prob flow thats restricted. If you can time how long it takes to fill a 4 pint jug with hot and cold (for comparison) then we'll have a much better idea of where your at.