guttering leaking between joins ?

Hello i have just used this great product called CT1 the sealant works even if the surface is wet. Lifesaver and timesaver when it comes to sealing in wet or damp conditions you can also paint on it as well. 5 star product well recomended.
Details of purchase:
www.ct1online.com - give these guys a phone as they are well clued up on the product as they advised me on what CT1 product to use and how to apply it. Well priced and great service.

Steve Jones
August 2012

If plastic type, I would think clip issue, Thats all that stops it leaking at that point, the clips have seals around, that lock onto the guttering to stop leaks.
Old metal type etc, I believe used some sealant, at the overlap if they needed to join 2 sections, not sure, but again, seal of the joint issue.

SD
October 2011