Cast Iron soil joints.....Caulking!?

[jackrc18]

According to my old man who was a plumber before the rise of the Roman Empire, he would caulk with just hemp first, and then hot lead.
From What I have read elsewhere it should be hemps oaked in Pine tar/Stockholm tar (?????) then hot lead.
Most deaf'n'dumbers today avoid cast like the plague BUT........
What is the acceptable modern equivalent to caulking, I have heard of lead wool but is it commoly available? How about some modern mastic type of caulking if there are any?

 

[Burnerman]

The popular one used to be 'Stanfords Drain Pipe Joint' which involved pressing in a waxed hemp (old sacking would do) followed by a sand and cement fillet. (Horizontal runs). In the frozen North this was referred to as 'tarry toot'. Your Dad would have used the molten lead on the vertical drain pipe stuff.
This still holds good today, because the necessity when using cast stuff is that all movement must be avoided.....!
John

 

[jackrc18]

The popular one used to be 'Stanfords Drain Pipe Joint' which involved pressing in a waxed hemp (old sacking would do) followed by a sand and cement fillet. (Horizontal runs). In the frozen North this was referred to as 'tarry toot'. Your Dad would have used the molten lead on the vertical drain pipe stuff.
This still holds good today, because the necessity when using cast stuff is that all movement must be avoided.....!
John

Thanks for that,
Yes I heard about sand and cement but thought (Probably wrongly) that it would crack very easily with thermal expansion. what S&C ratio 3:1 , 4:1?
Has anyone used lead wool?

 

[Burnerman]

Thermal expansion on cast would be very slight due to the mass of the metal....I've never heard of lead wool though!
If I was insistent about having a watertight joint I'd pack the joint with some fibre rope with plenty of mastic as a sealant before using sand and cement at a 3:1 mix.
You aren't using this stuff underground, are you? Normally the cast would change to salt glaze at the inspection chamber.
John

 

[Hugh Jaleak]

Still done the old way by the look of things. http://www.hargreavesfoundry.co.uk/uploads/PDF3_08112006115249.pdf

Although no doubt there would be umpteen risk assessments attached....

 

[jackrc18]

Thermal expansion on cast would be very slight due to the mass of the metal....I've never heard of lead wool though!
If I was insistent about having a watertight joint I'd pack the joint with some fibre rope with plenty of mastic as a sealant before using sand and cement at a 3:1 mix.
You aren't using this stuff underground, are you? Normally the cast would change to salt glaze at the inspection chamber.
John

No its above ground, thanks for all your help.

 

[Nige F]

According to my old man who was a plumber before the rise of the Roman Empire, he would caulk with just hemp first, and then hot lead.
From What I have read elsewhere it should be hemps oaked in Pine tar/Stockholm tar (?????) then hot lead.
Most deaf'n'dumbers today avoid cast like the plague BUT........
What is the acceptable modern equivalent to caulking, I have heard of lead wool but is it commoly available? How about some modern mastic type of caulking if there are any?

Tarred Gaskin for drainlaying 2 foot long salt glazed. . un tarred for caulking ........Hemp for screwed joints ..all banned due to Nanny State. Modern equivalent ..Saint Gobain - another French take over of good old blighty Did he mention to singe the hairs of the gaskin before pouring the lead Did he use an Asbestos Squirrell Tail for horizontal joints ...was his name Brutus .. or was he Spartacus

 

[jackrc18]

Still done the old way by the look of things. http://www.hargreavesfoundry.co.uk/uploads/PDF3_08112006115249.pdf

Although no doubt there would be umpteen risk assessments attached....

Hmmm Lead wool again...presumably its a type of packing.
Thanks for the link

 

[Nige F]

Thermal expansion on cast would be very slight due to the mass of the metal....I've never heard of lead wool though!
If I was insistent about having a watertight joint I'd pack the joint with some fibre rope with plenty of mastic as a sealant before using sand and cement at a 3:1 mix.
You aren't using this stuff underground, are you? Normally the cast would change to salt glaze at the inspection chamber.
John

what about sealed iron covers with half a dozen brass nuts ..@ the bottom of the "inspection" ie. stand on yer bleedin` head. Chamber

 

[jackrc18]

According to my old man who was a plumber before the rise of the Roman Empire, he would caulk with just hemp first, and then hot lead.
From What I have read elsewhere it should be hemps oaked in Pine tar/Stockholm tar (?????) then hot lead.
Most deaf'n'dumbers today avoid cast like the plague BUT........
What is the acceptable modern equivalent to caulking, I have heard of lead wool but is it commoly available? How about some modern mastic type of caulking if there are any?

Tarred Gaskin for drainlaying 2 foot long salt glazed. . un tarred for caulking ........Hemp for screwed joints ..all banned due to Nanny State. Modern equivalent ..Saint Gobain - another French take over of good old blighty Did he mention to singe the hairs of the gaskin before pouring the lead Did he use an Asbestos Squirrell Tail for horizontal joints ...was his name Brutus .. or was he Spartacus

When on site he ate lead sandwiches between two slices of tallowed asbestos, now and again moleskin for a change ......By the way...............I AM SPARTACUS!

I must admit I first thought of Timesaver/Heritage stuff (i.e. St Gobain) but thought I'd look into the old ways, the dark arts of lead pouring and now I am in so deep (Fascinated actually) that I wouldnt mind dipping my toe in ... not the lead, obviously.

 

[kevplumb]

According to my old man who was a plumber before the rise of the Roman Empire, he would caulk with just hemp first, and then hot lead.
From What I have read elsewhere it should be hemps oaked in Pine tar/Stockholm tar (?????) then hot lead.
Most deaf'n'dumbers today avoid cast like the plague BUT........
What is the acceptable modern equivalent to caulking, I have heard of lead wool but is it commoly available? How about some modern mastic type of caulking if there are any?

Tarred Gaskin for drainlaying 2 foot long salt glazed. . un tarred for caulking ........Hemp for screwed joints ..all banned due to Nanny State. Modern equivalent ..Saint Gobain - another French take over of good old blighty Did he mention to singe the hairs of the gaskin before pouring the lead Did he use an Asbestos Squirrell Tail for horizontal joints ...was his name Brutus .. or was he Spartacus

way i was tought

hemp well caulked

layer of lead wool well caulked

then finished with molten lead

caulked then another drop on top wiped over to finish

i often wondered where you caught tailless asbestos squirrels

probably hung around with the skinless moles

 

[doitall]

You would use tarred twine, not hemp

Then special caulking irons. Think I still have the full set, left, right, straight, and angled.

 

[kirkgas]

The popular one used to be 'Stanfords Drain Pipe Joint' which involved pressing in a waxed hemp (old sacking would do) followed by a sand and cement fillet. (Horizontal runs). In the frozen North this was referred to as 'tarry toot'. Your Dad would have used the molten lead on the vertical drain pipe stuff.
This still holds good today, because the necessity when using cast stuff is that all movement must be avoided.....!
John

i have run loads of horizontal joints with molten lead (not recently!!) you fit a rope round the horizontal pipe then clip it together with a shaped clip, (think it was called a running rope, but i could have just made that up) this leaves a small triangle to run the lead into, you then remove the rope and "stave" the lead into the joint to compact the lead, ah that takes me back (insert old git emotion)

 

[doitall]

Squirrels tails Kirkgas.

 

[kirkgas]

Squirrels tails Kirkgas.

nah not up here, never called it that, will ask the guys in work tomorrow, cant think for the life of me at the minute