Can I concrete over blue MDPE water pipe with a join

[teaboyjim]

I can’t see a joint either but there are a couple of 45degree bends on the other pipe, is that a ducting?

The other brown pipe is just venting for the air bricks so we don't block the passage of air underneath the two wooden floors in the two living rooms

 

[teaboyjim]

I'm still failing to see the joint in the photos!

The join is further along the blue pipe underneath one of the living rooms that I want to concrete over

 

[teaboyjim]

I will not put any Mechanical fittings under floors or walls unless they can be maintained.

This makes sense to me

 

[teaboyjim]

It is ducted........ Id be a little concerned about the toilet waste....

Yeah that fat pipe is ducting to connect up the air brick with the underneath of the other two living rooms with wooden floorboards and joists

 

[teaboyjim]

I think thats a vent for timber floor,to airbrick on outside.

Yes that's exactly right!!

 

[teaboyjim]

No, unless it can be accessed for maintenance: https://www.wras.co.uk/downloads/pu...lets/para_7_guidance_version_2_july_2014.pdf/

Thanks

 

[teaboyjim]

No, nor the pipe, it should not be embedded in the floor as per the link by @Chris_W

So the blue pipe is inside the protective sleeve when under the concrete

 

[mattylad]

If your able to pull the pipe that's under the concrete back out and pull a completely new length in then that seems the obvious choice of what to do.
The bit about the guy could not get it in, in a single continuous length may just have been that to do so required more work to do - what do you think about that bit?

 

[denso13]

So the blue pipe is inside the proper protective sleeve when under the concrete

The duct should be accessible and it isn't if it under concrete. You can ignore the regs if you like but it is technically wrong.

 

[teaboyjim]

If your able to pull the pipe that's under the concrete back out and pull a completely new length in then that seems the obvious choice of what to do.
The bit about the guy could not get it in, in a single continuous length may just have been that to do so required more work to do - what do you think about that bit?

Would it be fairly straight forward to replace it?

 

[mattylad]

I don't know.
Can you try?
your at the concrete stage now so its not too hard to redo some if you have to knock it out.
But first investigate if you can make it a single continuous run.

 

[teaboyjim]

I don't know. Can you try?

I'm going to give it a try.

 

[teaboyjim]

The duct should be accessible and it isn't if it under concrete. You can ignore the regs if you like but it is technically wrong.

You're talking about if it's got a join in it? So if this hadn't got a join in it you could bury the entire water pipe under the slab?

 

[denso13]

You're talking about if it's got a join in it am I right?

No, the actual pipe. "Fittings" in the regulations include pipework.