soil stack under kitchen floor for cloakroom toilet Help Needed

[Madrab]

Yeah ... I'd look to see how viable it is to re-run that and reconnect into the chamber lower down, you may also be able to hook the ground floor soil pipe in further along the run or separately into the chamber, to give you what you need.

Either way though, it is going to be a bit of work.

 

[Hugh Jaleak]

3 metres isn't a vast distance in the grand scheme of things. Given the choice of a bit of digging and a Turd Blender, I know what I'd rather do. Putting the existing pipe a bit deeper wont do any harm either, it'll be better protected.

I'd would get busy with a shovel, put the existing drain a bit deeper, and buy yourself some room to put a 4" connection in for the proposed WC. Appreciate it's more effort, but do it once and do it properly.

 

[DIYbuild]

Just do a bit more digging, that plastic is probably higher than the original pipe and in any case you can connect lower downstream if necessary.

Hey mate

how does it work connecting down stream would I need come out past the stack under the pavers channel along side the stack and then connect in-between the bend and the inspection chamber

 

[Madrab]

Yes

 

[DIYbuild]

Yes

thank for your help guys! really appreciate it

I have the floor going down in the next 2 weeks but won't have the time to do the outside work.

I'm planning on getting the internal pipping doing and then just cap it off outside until I can get everything dug up etc.

would I just need to install the pipe internally just at a normal gradient and then wherever it comes out I can either lower the original stack down and connect into it there OR go into the ground along side the soil and connect further down the line.

Just want to make sure I get the internal bit sorted before the flooring gets laid

 

[Madrab]

I would certainly agree with @Hugh Jaleak and recommend that as this needs doing that the original pipework is set @ a lower level if possible. Being monobloc it's shouldn't be too much of a challenge and there seems to be enough room certainly have enough room. Can the chamber cover be lifted to see how deep the chamber is? Could also look to alter the drains routing and get it away from that step.

The chamber entry may not be the deepest so to allow for the fall on the pipework, that may be why the initial pipe run is so high.

 

[DIYbuild]

I would certainly agree with @Hugh Jaleak and recommend that as this needs doing that the original pipework is set @ a lower level if possible. Being monobloc it's shouldn't be too much of a challenge and there seems to be enough room certainly have enough room. Can the chamber cover be lifted to see how deep the chamber is? Could also look to alter the drains routing and get it away from that step.

The chamber entry may not be the deepest so to allow for the fall on the pipework, that may be why the initial pipe run is so high.

thanks mate I'll get the drain cover and take some photos

 

[DIYbuild]

.

 

[Madrab]

I'll wait for @Hugh Jaleak to comment on that, tho I know what I think of it and I'm sure that can't be correct. Especially if the primary channel/drain is active but I'm certainly not as experienced as he is at drain/chamber works and what would be considered acceptable (or not).

How far above the main channel is the outflow of that plastic soil pipe, can't quite see in the pics.

 

[Hugh Jaleak]

Thanks Rob.

Internal Backdrops are permissible, but that setup is far from ideal, looks rather like cheap bodge up, as the original installer couldn't be bothered to do too much digging and fit it properly.

Given it's dropping in dead in line with the existing drain, I have to wonder where that pipe is going. Thoughts are, you could dig down adjacent to the building where the stack drops, find the sewer, and look at connecting the existing stack in there, which could also provide options for connection of the proposed new WC.

 

[DIYbuild]

Thanks Rob.

Internal Backdrops are permissible, but that setup is far from ideal, looks rather like cheap bodge up, as the original installer couldn't be bothered to do too much digging and fit it properly.

Given it's dropping in dead in line with the existing drain, I have to wonder where that pipe is going. Thoughts are, you could dig down adjacent to the building where the stack drops, find the sewer, and look at connecting the existing stack in there, which could also provide options for connection of the proposed new WC.

so have found out that this manhole services the property to my left and 2 properties to my right so they all join in.

could I just dig a channel internally and lay the soil pipe at a fall of 1 in 80 and come out of the wall and cap off and then do all the digging around Feb to connect to the drain?

 

[Hugh Jaleak]

so have found out that this manhole services the property to my left and 2 properties to my right so they all join in.

Then you will need the Water Co's permission to do anything with it as it's their asset.

could I just dig a channel internally and lay the soil pipe at a fall of 1 in 80 and come out of the wall and cap off and then do all the digging around Feb to connect to the drain?

You could, 1:40 fall is advised, external details would need to be agreed with Building Control and/or Water Co.

 

[DIYbuild]

Then you will need the Water Co's permission to do anything with it as it's their asset.

You could, 1:40 fall is advised, external details would need to be agreed with Building Control and/or Water Co.

would I only need the water Co permissions if I change anything within the chamber?

or would I still need permissions if I chopped into the stack underground between the bend and chamber

 

[Hugh Jaleak]

If working on something that only serves your property, no. Soon as it's shared with another property, it's the Water Co's responsibility.

 

[DIYbuild]

If working on something that only serves your property, no. Soon as it's shared with another property, it's the Water Co's responsibility.

Thanks mate

Going to try and achieve something like this