soil bosses

[Fred]

Hi,

I see there are two types of boss available:

Something that straps around the pipe like this:
http://www.toolstation.com/shop/Structural/Black+Soil+Vent/Strap+Boss+Black/d210/sd2849/p73828

and some thing that fits into the pipe like this:
http://www.toolstation.com/shop/Structural/Black+Soil+Vent/Short+Boss+Pipe+Black/d210/sd2849/p24326

I presume the first type is useful when you are adding a connection to
an existing pipe and don't want the hassle of dismantling the pipe to
insert another section but otherwise are there any
advantages/disadvantages to using either type?

I've not used either before. Is it just a case of using a hole saw to
cut out the hole and use a washer to make the joint watertight?

Do you cut one hole for all pipe sizes or do you cut a 32mm for 32mm
pipe, 40mm hole for 40mm pipe etc?

I've seen washers for 32 and 40mm connections but what about 50mm? Is
the boss 50mm wide? Do you just solvent weld 50mm pipe and not need an
insert?

And why are they called bosses, I thought they were people you worked
for ;)

TIA

[Bob Minchin]

Tim Watts wrote:
> Fred<fr...@no-email.here.invalid>
> wibbled on Wednesday 07 July 2010 14:18

>
>> Hi,
>>
>> I see there are two types of boss available:
>>
>> Something that straps around the pipe like this:
>>
> http://www.toolstation.com/shop/Structural/Black+Soil+Vent/Strap+Boss+Black/d210/sd2849/p73828
>>
>> and some thing that fits into the pipe like this:
>>
> http://www.toolstation.com/shop/Structural/Black+Soil+Vent/Short+Boss+Pipe+Black/d210/sd2849/p24326
>>
>> I presume the first type is useful when you are adding a connection to
>> an existing pipe and don't want the hassle of dismantling the pipe to
>> insert another section but otherwise are there any
>> advantages/disadvantages to using either type?
>

> "2nd is better if you can.

>
>> I've not used either before. Is it just a case of using a hole saw to
>> cut out the hole and use a washer to make the joint watertight?
>

> Yes - there are at least 2 standards: Marley, where you solvent weld an
> adaptor in to suit the pipe size. Floplast use one of 3 rubber bungs to
> adapt to 50/40/32mm

>
>> Do you cut one hole for all pipe sizes or do you cut a 32mm for 32mm
>> pipe, 40mm hole for 40mm pipe etc?
>

> I cut the biggest I can.

>
>> I've seen washers for 32 and 40mm connections but what about 50mm? Is
>> the boss 50mm wide? Do you just solvent weld 50mm pipe and not need an
>> insert?
>

> Yes - 50 exists, though is sometimes slightly harder to get. Either Screwfix
> of BES IIRC.

>
>> And why are they called bosses, I thought they were people you worked
>> for ;)
>>
>

> No, the soil pipe version are more useful...
>
And only one is full of shit all the time...

[John Rumm]

On 07/07/2010 14:18, Fred wrote:
> Hi,
>
> I see there are two types of boss available:
>
> Something that straps around the pipe like this:
> http://www.toolstation.com/shop/Structural/Black+Soil+Vent/Strap+Boss+Black/d210/sd2849/p73828
>
> and some thing that fits into the pipe like this:
> http://www.toolstation.com/shop/Structural/Black+Soil+Vent/Short+Boss+Pipe+Black/d210/sd2849/p24326
>
> I presume the first type is useful when you are adding a connection to
> an existing pipe and don't want the hassle of dismantling the pipe to
> insert another section but otherwise are there any
> advantages/disadvantages to using either type?

The strap on ones are harder to use (since you need to drill the pipe
side), but have the advantage of being retrofitted when required, and
also in non standard places.

> I've not used either before. Is it just a case of using a hole saw to
> cut out the hole and use a washer to make the joint watertight?

Holesaw (or fly/tank cutter) and some solvent weld adhesive usually. By
"washer" do you mean the "bung" that reduces the size of the boss to the
pipe in question?

> Do you cut one hole for all pipe sizes or do you cut a 32mm for 32mm
> pipe, 40mm hole for 40mm pipe etc?

Cut something that will not leave an edge for crud to catch on - i.e.
one that matches the hole!

> I've seen washers for 32 and 40mm connections but what about 50mm? Is
> the boss 50mm wide? Do you just solvent weld 50mm pipe and not need an
> insert?

It varies - each manufacturer tends to have subtly different sizes of
boss. Some use rigid PVC adaptors, some rubbery etc.

> And why are they called bosses, I thought they were people you worked
> for ;)

"boss2 noun (bosses) 1 a round raised knob or stud on a shield, etc,
usually for decoration. 2 archit a round raised decorative knob found
where the ribs meet in a vaulted ceiling. 3 mech a thickened part of a
shaft, to allow the attachment of other parts, or for strengthening.
verb (bosses, bossed, bossing) to ornament something with bosses. bossed
adj embossed, or ornamented with bosses.
ETYMOLOGY: 14c: from French boce."

--
Cheers,

John.

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[John Rumm]

On 07/07/2010 19:43, Bob Minchin wrote:

>>> And why are they called bosses, I thought they were people you worked
>>> for ;)
>>>
>>
>> No, the soil pipe version are more useful...
>>
> And only one is full of shit all the time...

Lol!

[Fred]

On Thu, 08 Jul 2010 02:11:01 +0100, John Rumm
<see.my.s...@nowhere.null> wrote:

>The strap on ones are harder to use (since you need to drill the pipe
>side), but have the advantage of being retrofitted when required, and
>also in non standard places.

Thanks for your reply. I've learnt a lot.

>By "washer" do you mean the "bung" that reduces the size of the boss to the
>pipe in question?

Yes, sorry, I didn't know the proper name for it.

>"boss2 noun (bosses) 1 a round raised knob or stud on a shield

And I guess this is a raised bit on the soil pipe, so it makes sense.

Thanks again.