Pipe dripping backwards into wall All aspects of plumbing questions and answers, help, tips and information

[Beatrice1711]

I have a pipe coming out of my home where the pipe is dripping backwards along the underneath of the pipe onto my wall causing damp. Can someone advise on how I would stop this?

Attached a photo but it’s not super clear to see the droplets going backwards

Thanks!

[Mr White]

Remove the cause of its flow (i.e. Tank over filling) angle it downwards, apply something to stop water running backwards

[Beatrice1711]

Angling it downwards makes sense, what can I apply to stop the water from running backwards?