Which pan connector?

[polesapart]

Short 90° Back to Wall Flexible WC Connector | McAlpine Plumbing

Upgrade your WC connector setup with the Short 90 Back To Wall Flexible WC Connector, ensuring flexibility and efficient water flow.

mcalpineplumbing.com

might suit

 

[Elsa TLC]

Short 90° Back to Wall Flexible WC Connector | McAlpine Plumbing

Upgrade your WC connector setup with the Short 90 Back To Wall Flexible WC Connector, ensuring flexibility and efficient water flow.

mcalpineplumbing.com

might suit

This is not going to give any advantage, unless the pan needs to move to the left or the right.

Flexible pan connectors are best avoided unless there is little other option.

 

[amfisted]

How much clearance under the floor before the vertical soil pipe disappears into the concrete? Is there enough to cut it below floor level and get an elbow on it to head backwards and still have the top of the soil pipe under floor level? If so then it's just a case of directing the soil pipe backwards, a piece of straight then back up above the floor.

Not ideal having that many bends but may be the only option if you can't get into that concrete.

Good point, but again I'll probably only know for sure after I lift the floorboards. Will update as soon as I can, even sooner if I can get a look at the situation in the meantime with my endoscope.

 

[amfisted]

Short 90° Back to Wall Flexible WC Connector | McAlpine Plumbing

Upgrade your WC connector setup with the Short 90 Back To Wall Flexible WC Connector, ensuring flexibility and efficient water flow.

mcalpineplumbing.com

might suit

A flexible connector was my first thought, but I would still need to relocate the connection with the soil pipe in order to gain enough advantage

 

[amfisted]

@Madrab, I’ve just had a look under the floor with my endoscope and although it’s hard to work out scale on the tiny screen, I reckon there’s about 12 inches of soil pipe between the top of the concrete mound and the underside of the floorboard. Do you think that would be enough to move the soil outlet about 10 inches nearer to the wall?

 

[Nige F]

sounds OK to me- but my floor is down so I can't check mine - unless you have a floor joist crossing the route ? less than the 12 inches to the board

 

[amfisted]

sounds OK to me- but my floor is down so I can't check mine - unless you have a floor joist crossing the route ? less than the 12 inches to the board

Ah.. not sure about the joist, will have to check. Another complication (albeit a minor one) is that the main stopcock is up against the wall in that location and will have to be accommodated by cutting away part of the unit that the cistern will sit in.Shouldn’t be visible, though.

 

[Madrab]

Personally I'd temporarily lift the toilet and get the floor up just so there is a better understanding of what's under there and what the options may be. Nothing better that actually offering up sections to see how it will all sit in situ, don't forget there also needs to be enough height to have at leat a 25mm per M fall on the horizontal to keep everything on the move.

 

[amfisted]

Personally I'd temporarily lift the toilet and get the floor up just so there is a better understanding of what's under there and what the options may be. Nothing better that actually offering up sections to see how it will all sit in situ, don't forget there also needs to be enough height to have at leat a 25mm per M fall on the horizontal to keep everything on the move.

Thank you. After further consideration I’ve decided to site the new WC in the same position as the old. I don't have the time or resources to properly explore other options, and in any case the close proximity of the sink unit would make the WC sitting position unnecessarily cramped if the unit is moved back against the wall. I’ll box in the dead space and main stopcock behind the unit and move on to something new.

Thanks again to all contributors for your input.

 

[amfisted]

Final post now that the job is done. I opened up the floor and found that there's only a short length of soil pipe beneath the boards, perhaps six inches or so, before the pipe disappears into the mountain of concrete. So no chance of moving the outlet closer to the wall using bends etc and as stated above, no appetite or time for major excavations.

The "back to the wall" toilet is now in its permanent position about eight inches from the wall, and everything is working fine. The flush is thunderous and the drainage system is getting a darned good purging for the first time in years.

 

[Elsa TLC]

Final post now that the job is done. I opened up the floor and found that there's only a short length of soil pipe beneath the boards, perhaps six inches or so, before the pipe disappears into the mountain of concrete. So no chance of moving the outlet closer to the wall using bends etc and as stated above, no appetite or time for major excavations.

The "back to the wall" toilet is now in its permanent position about eight inches from the wall, and everything is working fine. The flush is thunderous and the drainage system is getting a darned good purging for the first time in years.

Did you take some pictures. Its good information for all that's interested in this thread.

 

[amfisted]

Did you take some pictures. Its good information for all that's interested in this thread.

Yes, and I'll post them here later, thanks.