Water pressure | Bathroom Advice | Plumbers Forums

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G

gelan

Hi, I have just joined the forum, and hope you can help me with a problem. I am a DIYer but have done a bit of plumbing over the years!

I am plumbing in a new downstairs kitchen sink. I have connected 15mm pipework for the new hot tap supply from the existing 22mm hot supply upstairs in the bathroom (using a 22mm x 15mm x 22mm 'T' compression joint). I have used standard 15mm copper pipe for most of it, with grey flexible plastic pipe in a couple of tricky places.

The water is heated by an immersion tank.

The new sink & tap is approx 5 metres from the connection to the old pipework (with a few right-angle turns where it goes round the corner of the room etc). Although the water runs through the new tap OK, the pressure and flow is not very strong even with the tap fully opened.

Can anyone tell me where I've gone wrong, please, or if there is a quick solution. Many thanks,

Gelan
 
Is the tap designed to be used with combi boilers? If so, it's designed for mains pressures.

It may just be that you dno't have a particularly high pressure from your open system, and 5m of 15mm tube finishes it off!
 

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