Soil pipe questions

[MonkeyHunter]

Hi,

Ive just finished digging a trench through my house for my gas & water supply (new gas supply & lead replacement for water), which are going to be laid in a floor duct. Some time in the not to distant future, I want to install a downstairs cloakroom, and as i already have a trench in the concrete floor now would seem like a good time to run that part of the soil pipe. (I expect creating that amount of dust again would involve death by girlfriend )

Questions are:

Can I just bury the soil pipe in concrete?
Can I connect the waste from the sink to the pipe after the toilet, or will i have to run a separate pipe out to the soil stack?


The back of my house is higher than ground level, so getting the fall shouldn't be a problem.

Cheers!

 

[Bahco]

Can I just bury the soil pipe in concrete?

Yes ...........After BCO has inspected it.

Can I connect the waste from the sink to the pipe after the toilet,

If you wish or you can buy a pan connector with a boss on top to connect your basin waste.

 

[MonkeyHunter]

Can I just bury the soil pipe in concrete?

Yes ...........After BCO has inspected it.

Can I connect the waste from the sink to the pipe after the toilet,

If you wish or you can buy a pan connector with a boss on top to connect your basin waste.

Great, not sure im going to have time to sort that out before the Duct has to be screeded in. If BCO have access to both ends of the unconnected pipe would that suffice? Obv, if I mess up I would have to dig an alternative trench for a new soil pipe. I understand the required fall is a Min of 18mm / Meter?

That pan connector sounds like the badger then.

 

[hi-spec plumbing heating]

Hi,





Can I just bury the soil pipe in concrete?

soil pipes must be layed in 10mm single or suitable soil not containing brick or rock.


Can I connect the waste from the sink to the pipe after the toilet, or will i have to run a separate pipe out to the soil stack?

you can not connect the basin waste into the wc 110 waste either a proper wc connector or straight back to the soil stack.



Cheers!

 

[MonkeyHunter]

One of these is ok?? http://www.wickes.co.uk/invt/158826

 

[hi-spec plumbing heating]

yep
and your first junction must be no less than 450mm to invert of drain.

 

[MonkeyHunter]

yep
and your first junction must be no less than 450mm to invert of drain.

Sorry by "junction" do you mean where i connect the soil pipe from the new WC to the existing soil stack?

 

[hi-spec plumbing heating]

 

[MonkeyHunter]

cheers for the help hi-spec.

So, thats to the bottom of the soil stack then?

My soil pipe currently runs down the outside of the house, before running several feet underground to the main drain.

 

[hi-spec plumbing heating]

yes the bottom where it gos horizontal to drain. the bottom is the invert.

 

[MonkeyHunter]

yes the bottom where it gos horizontal to drain. the bottom is the invert.

Great, and thanks so much for all the help. Ive now found 'Part H' so all in i should be fine.

Any thoughts on whether id get away with installing the pipe and having the BCO inspection after the fact, as long as both ends are accessible? It's just that i am on a tight deadline for the gas, water, & boiler install. And don't think i will have time to sort out the soil pipe as well if i have to have it inspected.

 

[Bahco]

Any thoughts on whether id get away with installing the pipe and having the BCO inspection after the fact.

They will want to see all the alterations especially joints. or should that be

 

[MonkeyHunter]

Definitely

Will give them a call and see when they might be able to come out...

Cheers!