Cast Iron Waste pipes

[stevenrafferty]

I have a house (circa 100 years old) with a bathroom on the first floor and the waste pipes run down through the understairs cupboard, out to the external wall.

However, I have noticed that I have the large diameter waste, for the WC, but also a seperate, smaller diameter waste, which seems to take the waste water from the shower/bath/wash hand basin. Both are in cast iron after leaving the bathroom.

Is is possible to have the waste for the shwoer/bath/etc connect into the large diameter pipe at some point? I am looking to save some space and am getting the bathroom refitted so timing would be now.

Thanks

 

[Bahco]

You can use a plastic collar boss which straps on to your outside soil pipe, and then you run your respective waste pipes to it. It has 3 inlets so you can run all into it no problem.
I've not had the pleasure of drilling into a cast iron pipe yet but am told can be time consuming
You may consider using black plastic waste pipe which will match the soil pipe when you paint it

 

[kevplumb]

when i remember ill take and post a pic of a cast stack in the house i am working in
should amuse somebody

 

[PEDANTICVINDICTIVEMAN]

Is your brother Gerry still living on Baker street and is this where the iron pipe is.

 

[kevplumb]

you cant use a plastig strap boss on cast (tut tut bahco) it will leak
however you can get one for cast but be sure to tell the merchants thats what you want