Soil pipe reduction?

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Soil pipe reduction?

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T.G

Joined: 13 Sep 2009
Posts: 7280
Location: Somewhere you're not

Posted: Fri Oct 12, 12 1:27 pm Post subject: Soil pipe reduction?
Is there a way of reducing a soil pipe down to fit a kitchen sink waste pipe and if there is what are the bits called? Thanks

dpack

Joined: 02 Jul 2005
Posts: 45459
Location: yes

Posted: Fri Oct 12, 12 2:13 pm Post subject:
reducers

Ty Gwyn

Joined: 22 Sep 2010
Posts: 4563
Location: Lampeter

Posted: Fri Oct 12, 12 3:09 pm Post subject:
If you mean to connect a sink waste to a soil pipe,you used to be able to buy a clamp that bolts around the soil pipe,with a sink waste inlet,you just bore out a hole in the soil pipe to accomodate the waste inlet, Otherwise you will need a soil pipe junction,with a sink waste inlet,cut the soil pipe to insert this junction,and join back remainder of soil pipe.

dpack

Joined: 02 Jul 2005
Posts: 45459
Location: yes

Posted: Fri Oct 12, 12 3:16 pm Post subject:
"clamp on boss "(mm of stack and mm of sink pipe ) for plastic if it is cast iron tis best to get a new " section with a boss " or a " y" that can be reduced together with 2 "timesavers" to connect it to the cut off ends

OtleyLad

Joined: 13 Jan 2007
Posts: 2737
Location: Otley, West Yorkshire

Posted: Fri Oct 12, 12 3:29 pm Post subject:
You might have already thought of this - but make sure its properly vented, otherwise you might be getting 'bad' air from the soil pipe back up into your sink.

Tavascarow

Joined: 06 Aug 2006
Posts: 8407
Location: South Cornwall

Posted: Fri Oct 12, 12 4:09 pm Post subject:

OtleyLad wrote:

You might have already thought of this - but make sure its properly vented, otherwise you might be getting 'bad' air from the soil pipe back up into your sink.

Your sink should have a U-bend to stop that.
Regardless of venting it would still smell otherwise.

dpack

Joined: 02 Jul 2005
Posts: 45459
Location: yes

Posted: Fri Oct 12, 12 4:15 pm Post subject:
the venting thing is to mitigate a flush from on high sucking the u bend dry as it goes past

T.G

Joined: 13 Sep 2009
Posts: 7280
Location: Somewhere you're not

Posted: Fri Oct 12, 12 4:44 pm Post subject:

The bad air had been thought about but thanks for reminding me

The soil pipe is in concrete outside under stone paving, loathed to dig is out, it is new soil pipe not pot/clay or what have you. It was laid in anticipation of this project some 6 or so years ago and capped off.

The cutting into the pipe option TyG suggested appeals, I'll have a look see, think the boys at the merchants enjoy my visual explanations of what I'm after

from their comments and chuckling.

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