Replacing water pipe

[williamglossop]

The water main into my house is in 15 copper pipe from the street. It enters the house at the front and runs across the surface of the oversite concrete to the back of the house. It then runs up the rear wall into the kitchen where the house stop tap is.

I want to replace it with 25 mm mdpe pipe. Is it acceptable to run a new pipe in the same manner? It passes through the front wall (under the outside ground level of course) inside a larger diameter pipe.

 

[Deleted member 267285]

Mdpe isn’t recommend for being exposed, so better if you can keep it underground. Also that copper being exposed could lead to undue warning of the water contained within the pipe.

 

[williamglossop]

It will be underground outside, and then under the suspended timber floor of the house.... running across the oversite. O
I'm wondering if I could clip it to the underside of the joists. This would keep it 3 feet above the oversite concrete. There's no way to run it underneath the oversite.

 

[williamglossop]

Was thinking like this....

 

[Deleted member 267285]

Yes that should work, sorry it sounded misleading when you said oversite, and running up the back wall. This is why sketches/photos help immensely needs to be ducted though.

 

[williamglossop]

I would duct it up until it reaches the underside of the joists..... can't see the point in ducting it all the way to the back of the house. It comes in under the lounge floor..... hence the stop cock not appearing until it come through the floor in the kitchen.

 

[Dereekoo]

Possibly insulate it under floor area, i assume you have a boundary stopvalve but if not put one just outside the house

 

[williamglossop]

Yeah there is a stop tap at the boundary.

 

[cdbe]

You need to insulate and duct it in the void (to avoid freezing and vermin) until it comes up through the floor. Most water providers have a guide with diagrams showing what is required. If you can get them in under the floor then 110mm soil pipe is commonly used.