I have a soil stack as pictured. I no longer need that white 40mm pipe going into the stack. But i also need to trim back the pretending bits. So I’ve highlighted in green and red. The red one I can trim the bit sticking out but for the bottom one in green that currently already has a solvent welded pipe to it, what’s the best way to cap this and get it as close to the pipe as possible without all that extra bit sticking out?
