Speedfit vs Copper - flow

[Paul_GPvR]

Hi,

I've never used plastic pipes for plumbing before, but i'm just about to redo the whole bathroom so i bought some 15mm speedfit pipes and connectors.

After trying them to test the connections i noticed after inserting the pipe inserts into the plastic pipe the actual pipe diameter is now nearly half that of a copper pipe.

Surely this will affect the flow rate to the shower, bath and taps?

I'm tempted to use normal 15mm copper to ensure a decent flow rate.

What do you think? Will i see a difference?

Thanks a lot.

 

[seco services]

if your water supply to bath/shower etc are gravity then yes it will restrict.

 

[Paul_GPvR]

if your water supply to bath/shower etc are gravity then yes it will restrict.

cold is mains pressure and hot is direct from valliant combi.

So even though the speedfit's internal diameter at joints/connections is a lot smaller than 15mm copper it will have the same performance?

 

[seco services]

your running mains pressure cold/hot so not a problem