Would this help to improve water pressure?

[crappy]

My house is around 300m from the main road and fed with a 25mm mdpe pipe.
It enters my house, runs through a 22mm copper pipe to the boiler and then runs around the house in 15mm pipe.

Clarke BPT1200SS 1" 1200W 61Lpm 46m Head Stainless Steel Booster Pump (230V) - Machine Mart - Machine Mart

www.machinemart.co.uk

If someone is in the main shower, opposite side of the house, and you open a downstairs tap, the showerer loses everything.

 

[denso13]

Maximum allowed to pump from mains, without permission, is 12l/min.

 

[Madrab]

What is you mains dynamic pressure and flow just now?

That pump isn't really designed to pump water from the household mains, the limits on what the mains can be pumped at not withstanding

 

[crappy]

Maximum allowed to pump from mains, without permission, is 12l/min.

What is you mains dynamic pressure and flow just now?

That pump isn't really designed to pump water from the household mains, the limits on what the mains can be pumped at not withstanding

I actually get 12l/m. There is an outside tap which tees off the mains. Onto that I have a flow meter. That caps out at 11/12 my.

So is my issue internal then?

 

[denso13]

As Rab says, the pressure is a better measure, 12l/m at low pressure will be quite poor for the mains.

 

[Madrab]

Yup, as Denso mentions, the pressure is a better indication, especially if the flow is that low. I would hazard a guess that if the flow drops to nothing then the dynamic pressure will be garbage. What you need to understand is if that's what the mains is delivering or whether there is a bottleneck in the property somewhere.

If it's the mains itself then then a mains pump may help, as that would allow a sustained 12L/min @ around 1>1.5bar dynamic.

Time to get the mains tested by your local transporter.