How do I connect into this soil pipe?

Can anyone help me please? Having a bit of a nightmare fitting a new WC.



I have added a picture of an old toilet waste that I need to connect into. It is clay and concreted into the floor. It did used to have a collar on it but it cracked and came off when the old toilet was removed.

A new plywood suspended floor has been added over the top and there is a distance of roughly 8" between the top of the old clay pipe and the new plywood floor.

The new toilet position is unfortunately offset by about 8" to one side.

I also need to get the waste from a wash basin into it somehow as well.

I suppose my main question is this - because there is a new floor do I need a new 'termination' or flange on the new floor level. If so does it have to be brown drainage pipe?

I can just about connect to it using a swan neck pan connector into a flexible extension into an offset pan connector pushed straight into the clay but this would involve the flexible extension just passing loose through a hole in the plywood - it just doesn't seem like it will be right?

My gut tells me that to do it properly I would need to dig up around the clay and use a clay to plastic connector and then terminate the drainage on the new floor level and then go into this with a pan connector.

If this is right then would I need to involve building control?

I am not a professional plumber just a competent DIY'er - do I need to call in the Pro's!

Into that clay pipe I would fit a McAlpine DC-1. This will happily connect you to 110mm plastic. Fit a section of 110mm pipe, then a bend, and another section of 110mm to suit and use a 90 ° pan connector to go from your new pan to the soil pipe. (Upside down 'L' shape.) You can use either a strap boss or a bossed pan connector for the basin waste connection, whichever easiest.

Everything should remain in place, although for extra insurance you could whack a bit of concrete around the DC-1 fitting to hold it in position.

Thanks for the answer.

What about where the pipe goes through the plywood floor?
Is it fixed using a flange or something?

Ta Paul

Provided the hole where the pipe comes through isn't massive then I wouldn't worry about it. Too big a hole in the floor could present problems if small items disappear down there....

Personally I'd be putting a bit of concrete around the drain connector to hold that in position, then the short length of pipework needed should be self supporting between the drain and pan. Avoid flexi connectors, they can be problematic, rigid pipework is a far superior solution. I would use a spigot ended pan connector joining straight to the 110mm pipe in that situation as opposed to the finned end type.

I understand. Thanks for taking the time to explain. You've helped me a lot thank you!

McAlpine DC-1 (example) http://www.bellabathrooms.co.uk/mca...nnector.html?gclid=CNDtt9rcj8QCFSMOwwodBlEAng

Pan Connector (example) http://www.mytub.co.uk/pancon-90deg-s-4in-110mm-polypropylene-swc42w-product-678285

Hope that helps.

There's also a McAlpine DC90, like DC1 but with 90 degree bend, if that helps with the 8 inch offset?

http://www.mcalpineplumbing.com/drain-connector-black-2509.html?id=1872