What is Tarred Gaskin?

[stonehouse]

I will be replacing some underground drainage pipes from the gulley outside my kitchen to the manhole. I'm thinking to buy traditional glazed clay pipes (mortar joint) as the 100-year old company WT Knowles still manufacture them.

After researching online and books I found out that tarred gaskin should be applied first in the joint before putting mortar but what is exactly tarred gaskin and where to buy it from?

Thanks in advance.

 

[Hugh Jaleak]

Why on earth do you want to use those? Plastic will be fine unless there's vehicular traffic going over the top, in which case use 'Supersleve' clay pipes.

 

[muggles]

https://www.diynot.com/diy/threads/tarred-gaskin-anyone.15514/

 

[75pete]

Give WT Knowles a call and ask.

 

[algas]

Its tarred rope used to tamp into the joint before a mortar seal

 

[Ian H]

Not many old clay joints have that in them. They are usually just mortar.