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Campo73

Hello all I'm hoping for some advice regarding the plumbing installed into our newly renovated house.

We have installed an unvented system, the water pressure at the street is 3 bar. The pressure gauge on the water cylinder is reading 1.5 bar. My first question is why does the pressure gauge at the water cylinder not read the same as the street?

The water flow is what I would consider very average. These are the measures I have taken by filling a bucket for one minute:

ensuite shower 9l/m
ensuite tap (restrictor removed) 11.5l/m
bathroom tap 8l/m
bathroom shower 12l/m
bath-takes 18 minutes to fill to the overflow.

Copper pipe has been installed and we think it is 22mm. The spec for the ensuite shower states maximum flow 17l/m at 3 bar. The flow seems very poor and we are only getting half the spec.

I'm hoping someone can shed light on this and give me some non technical advice,I am just a layman so apologies if what I have written omits some basic information.

Many thanks in advance.
 
Maybe add to the "I'm looking for a plumber" section on here we'll probably have someone in your neck of the woods. The guys on here are excellent as they're all afraid of the critique they will get if something is done badly.
 

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