Joining cast iron soil pipe

[Meady]

A mate of mine has just bought a house and wants to fit a toilet/basin downstairs. Only issue is the soil pipe is cast iron which I have never dealt with before.

What’s the best way to connect onto it and what fittings do you think I would need?

Cheers

 

[ShaunCorbs]

Only way really is to dig the floor up it should be clay pipe and either fernco on the top (if it's supported above) or replace the whole stack

 

[mikegas]

http://www.saint-gobain-pam.co.uk/s...aver_tpl_may_2017_edition_16pp_a4_final_0.pdf

 

[gmartine]

Ok, you didn't read this here. Use a 110mm hole saw and cut a hole adjacent to the access door then bond in a butchered fitting.

 

[ShaunCorbs]

http://www.saint-gobain-pam.co.uk/s...aver_tpl_may_2017_edition_16pp_a4_final_0.pdf

Would be ok if the rodding point wasn't there

 

[Meady]

Would cutting the rodding eye off flush with the floor work so that you are just left with the bit of pipe going into the fitting in the ground. Then using a fitting like this

 

[ShaunCorbs]

Yes would work aslong as the cast isn't the small type eg less than 95mm

 

[SimonG]

Last one I did was a strip out and replace. The cast that came out must have had an internal diameter of less than 25mm.

 

[Meady]

Yes would work aslong as the cast isn't the small type eg less than 95mm

I measured it and the external diameter is 100mm?

 

[Dkdc71]

Cut the tee out and use the joint below the spigot on the tee to replace from there up and as Shaun corbs said use a fernco fitting to get back onto the rising stack

 

[ShaunCorbs]

I measured it and the external diameter is 100mm?

Depending on thickness I would say it's the small type best to get to clay

 

[Meady]

What fitting would I need if joining to clay?

Cheers for the help

 

[ShaunCorbs]

What fitting would I need if joining to clay?

Cheers for the help

That fitting you posted will fit into clay there great

Will even fit into the collar of the clay so you don't need to remove that

 

[Meady]

So just take the cast iron ridding eye out and that fitting I put a picture of above can go straight into the clay?

 

[ShaunCorbs]

So just take the cast iron ridding eye out and that fitting I put a picture of above can go straight into the clay?

Correct it should only be cemented in

 

[Meady]

Sounds like a plan to me, and does that fitting need anything to seal it in the clay or is it ok by itself.

 

[ShaunCorbs]

Sounds like a plan to me, and does that fitting need anything to seal it in the clay or is it ok by itself.

Nope might need some silicon spray to help it go in

 

[Meady]

Spot on, cheers for the help, I’ll let you know how it all goes

 

[Meady]

Got it all done today, that fitting worked a treat.

Some of the old soil was a pain to get out due to fittings in the floor but a bit of gentle persuasion with a hammer soon sorted that

Quick question though, the top section of pipe wasn’t cast iron, it was more or a fibery material. What would this have been made out of as it wasn’t cast iron?

Cheers

 

[Dkdc71]

Asbestos?

 

[Dkdc71]

What colour was it ? Can you upload a picture of it?

 

[S.P.S.]

Sounds like you have asbestos there

 

[ShaunCorbs]

O c£&@ you should of stopped asoon as you knew it wasn't cast

Whole stack needs to be replaced now

 

[sammathias]

was going to say that looks like asbestos.

 

[sammathias]

O c£&@ you should of stopped asoon as you knew it wasn't cast

Whole stack needs to be replaced now

its fine if it isn't disturbed again...