Simple Soil Pipe Plumbing Question

[Camperdownfamily]

This is probably a daft question to most people - but I can't find the answer anywhere.

I have bought a FloPlast 92.5° x 110mm Soil Branch Skt/Skt/Spig Grey (more details here: http://www.diy.com/nav/fix/plumbing...ch-Skt-Skt-Spig-Grey-11577551?skuId=12088257)

I need to connect into both the 50mm spigots, so I need to open them. Do they punch out, or do I have to saw them out, or how do I open them to ensure clear flow from the attached pipes, and no damage to the branch?

Thanks

 

[Hugh Jaleak]

Holesaw (of correct size) is easiest method. Can be done with a padsaw, but slow and a lot of effort. They wont punch out, you'll more likely wreck the branch....

 

[Newboy]

http://www.diy.com/nav/fix/power-to...Bi-Metal-Holesaw-51mm-11407723?skuId=11918430

with a suitable arbor

 

[Camperdownfamily]

Thank you.

Just what I needed to know.