Repairs and problems
Leaking waste pipe joints under a sink or bath
Likely causes
- 1
A joint that drips only when water is running is a seal or alignment problem, not a crack.
- 2
Solvent-weld connections do not tolerate movement, so a run without support clips eventually stresses the joint.
Related services and areas
Common mistakes to avoid
A joint that drips only when water is running is a seal or alignment problem, not a crack.
Common questions
Can I just tighten it?
Compression nuts can be gently tightened, but overtightening deforms the seal and makes it worse.
Is tape a fix?
No, tape on a waste joint hides a fault that will continue.
Rather speak to someone than fill in a form?
Ring during the working day and you will get an answer from the person who would be on site, not a call centre.