It happened to me once - I got the No 3 & 4 sections stuck & had to bring it home touching the wind screen to back window of car!! Pole sections can get jammed especially in the rain.
Just right length then - what if 4 & 5 sections + ???
Once I managed to get it apart, I simply coloured in ALL the spigots with a Graphite (What we used to call Lead) Pencil.
Can also get the Pencil in the sockets a bit as well.
Seems to have cured it - It hasn't happened since.
I believe there's also a product on the market, but why bother when a School Pencil does same job!!
I live opposite a school & pick up loads of discarded pencils from outside our house - seems sharpeners are a thing of the past.
Edited by Martin56, 15 April 2017 - 01:03 AM.