Best way to cap cast iron soil pipe

[mfgs]

I have got to remove a toilet and cap off the cast iron waste. It is half buried on a concrete floor so not easy to cut, how do you normally go about capping or plugging these. All I can think of using would be a 4 inch bung like used to testing?

 

[jtsplumbing]

Do you need to use the drain again ? if not bung some newspaper down and seal with sand/cement.

 

[gasmanrob]

Fernco collar with a roding eye in the other end?

 

[mfgs]

Do you need to use the drain again ? if not bung some newspaper down and seal with sand/cement.

It is in a branch off of the main stack so cant risk trying that, its just the way its half buried in the concrete floor tight to a wall which makes it a real pig.

Rob, that's not a bad idea. They are wanting to build some cupboards in place of where the toilet was so may be a bit bulky. Trying to keep it as tight as possible.

 

[kozak1968]

I think ensign do an internal plug

 

[chris watkins]

Good god just got out of the way of em stampeded horses, there must be Indians around these parts !!!!

If there is any chance of the stack blocking & the removed connection being put under pressure I would want to be using something that is going to stay in place & remain water tight.

Either a 100mm Timesaver or Ensign coupling (GT01) with a Blank end (GT70) cap, is the proper way to do it, IMHO.

At a push I am with Kozak above, they do a proper internal plug but you only need about 25mm of plan pipe showing to get the coupling on the outside.

[DLMURL]http://www.saint-gobain-pam.co.uk/assets/docs/sdr/Timesaver_Manual_2012.pdf[/DLMURL]

 

[kirkgas]

If you can't get something on the outside of the pipe a multikwik pan connector with a 110mm PVC plug in the end that usually goes over the pan spigot may be shorter and will allow rodding access, if you can get something over the pipe then a timesaver bolted coupling with the PVC plug

 

[Mike Jackson]

How about Drain Connector with 1¼"/1½" Ring - Drain Connectors - Waste Pipe & Fittings | McAlpine Plumbing Products with an 1 1/4 rodding eye.

 

[brum]

I would go with 4inch bung as used on drain tests as you suggested pushed in as far as practical and faced up with sand & cement

 

[Millsy 82]

How about Drain Connector with 1¼"/1½" Ring - Drain Connectors - Waste Pipe & Fittings | McAlpine Plumbing Products with an 1 1/4 rodding eye.

Thats how I would do it aswell.

 

[brum]

How about Drain Connector with 1¼"/1½" Ring - Drain Connectors - Waste Pipe & Fittings | McAlpine Plumbing Products with an 1 1/4 rodding eye.

Should have looked at this first you can buy these blind-cheaper than a 4inch bung

 

[mfgs]

How about Drain Connector with 1¼"/1½" Ring - Drain Connectors - Waste Pipe & Fittings | McAlpine Plumbing Products with an 1 1/4 rodding eye.

Cheers mike, that looks ideal. I have never seen one of them before.

 

[chris watkins]

Just don't say I did not warn you!!!, if the drain blocks & the stack fills with water the drain test plugs (bung) or drain connectors will not take the pressure & are likely to come out causing a flood.

If your name is on the work there will be a claim against you & insurance are un-likely to cover damages as inappropriate fitting have been used.

Ask yourself, is it worth the risk & they are going to be paying for the material & labour costs aren't they???

 

[kris]

Seal this into cast pipe , job done
Drain Connector Blank Cap - Drain Connectors - Waste Pipe & Fittings | McAlpine Plumbing Products