How do I form a seal between these please

[Jupiter01]

My setup is like this. I used a manrose coupler and duct tape on the joint but recently noticed that this leaks...
Th grey pipe is a manrose round duct.
Should I use one of those rubber boots with jubilee clip here?

 

[potterton678]

View attachment 409504
My setup is like this. I used a manrose coupler and duct tape on the joint but recently noticed that this leaks...
Th grey pipe is a manrose round duct.
Should I use one of those rubber boots with jubilee clip here?

Yes, a rubber coupling should do the trick. You need a soft material to make the seal.
Or better still, get a longer section of pipe so that there are no joints.

 

[Jupiter01]

Yes, a rubber coupling should do the trick. You need a soft material to make the seal.
Or better still, get a longer section of pipe so that there are no joints.

That's the longest I could get these 100mm manrose pipes in. Are longer lengths available?
Also, what rubber couplers do you recommend for these 100mm pipes?

 

[JohnD]

You can use soil pipe. It comes with coupler sockets on one end.

Usually in 3m lengths