MDPE plastic pipe connectors

tomstickland

I'm buying the parts necessary to connect my garage to my water supply. I've done all my own plumbing before, so most of it is simple enough.
However, it's not clear on screwfix exactly which adapters I need to convert from the 25mm plastic pipe to 15mm copper pipe.

Edit: Actually this is called a "Copper MDPE adapter kit 15mm"

Is that what I need?

From what I've read, it looks like I need to put inserts into the end of the pipe.

Cypher

I have only used 15mm plastic pipe for internal piping, I used a brand called PolyPlumb.

The black insert in the lower picture is what you need for all the plastic ends. When using the plastic pipe you need to put an insert in the end of the pipe to strengthen it where it sits in the pushon fittings.

The fittings I used could be connected directly onto copper pipe both pipes being 15mm, using just the push on fittings. You don't need any inserts when going to the copper,
For your MDPE 25mm you may need something like this

http://www.wickes.co.uk/invt/425083



Polyplumb MDPE Adaptor £2.69 Size: 15 x 25mm

ictmad

u need a 25-15 adaptor kit,most cover copper pipes and you,ll need pipe liners also,but only 1 25mm one and 1 15ml one

tomstickland

Hi, the bits have arrived now. The instructions were next to useless so I just played around with the parts. I found that the converter kit parts replace the standard parts in a MDPE compression connector.