Underground clay to plastic connection help

[Adrian_P]

Hi. I need to reinstate a soil pipe. The original connected to clay pipe which is incased in concrete. The pipe has broken (it was backfilled with concrete in the original rest bend) but I don’t want to have to go as far as the manhole (not sure if I even can?!). Please see attached photo at this point. If I can cut it off clean but not remove the concrete on the outside, can I fit a push fit drain connector?
Thank you

 

[Deleted member 120897]

Should be able to cut it off clean, using an angle grinder, then use a flexi seal style connector to pvc.

 

[snowhead]

As above, similar to this link.
Check exact pipe sizes as various connector sizes are available, some with 2 different end sizes

The pipe end needs to be cut off square to the pipe

Flexible Connector

Use this connector to join together soil pipes. It provides a secure, tight seal so you can extend pipe lengths with confidence. Plumbers make use of connectors like this one in many residential and commercial sewage systems. It's also a great choice for connecting pipes for underwater draining...

www.toolstation.com

 

[Adrian_P]

Thanks. However, it won’t be easy to get the concrete off the fragile clay pipe to allow a flexi connector. Hence why I wondered if a pipe connector pushed inside would be acceptable/allowed?

 

[WC1]

This is a type of connector that can be "pushed inside"

Icon Coupling - Internal Pushfit Couplings | Fernco - US

www.fernco.com

 

[snowhead]

Not seen them before,
On the Flexseal U.K site, their wonderful pipe size selector wants name phone email etc to reveal the sizes.
Got through without giving much away





Seem to be available at several places.

Fernco, previously known as Flexseal Internal Push Fit Coupling 4 Inch IC95-100P - Internal Couplers | Drainage Central

Buy Fernco Internal Push Fit Coupling 4 Inch IC95-100P Online. Fernco's range of Flexible Internal Couplings are available for Next Day Nationwide Delivery from Drainage Central

www.drainagecentral.co.uk

 

[Adrian_P]

Not seen them before,
On the Flexseal U.K site, their wonderful pipe size selector wants name phone email etc to reveal the sizes.
Got through without giving much away



View attachment 73272

Seem to be available at several places.

Thanks WC1 and Snowhead, these are exactly what I need! I just need to get it cut off square now!

 

[WC1]

Theyre
1. Widely available
2. A bit of a game changer, a genuinely innovative development.

They do a reducer to 4 inch

To get the pipe cut if its in poor shape i would say the trick is to open up the trench way more than you think you need. Go slow with a 4 inch grinder and masonry disc.
Good luck.

 

[Adrian_P]

Follow up questions;

What type of pipe is this? See photo. It appears to be 98mm ID.

I believe this is the correct Flexseal;

IC95-100P - Flex Seal Flexible Internal Pushfit Coupler for Connecting DN100 Pipes Using the Internal Wall. Ideal for Use When the Pipe Exterior is Inaccessible, Typically Used for Adapting Old Clay 93-98mm to Plastic, Cast Iron and New Clay 99-103mm Pipe Internal Bore

Pricey though! (Inc £46.79), but still far cheaper than a new chamber!

 

[WC1]

That looks good. Plenty of fairy liquid on!