The last drain on our property (ie before the runway leaves our front garden to join the public sewer -presumably under the pavement/road in front of our house) keeps blocking up.
We have lived here for over 30 years without any previous problems!
I have bought some rods,used the plunger attachment and successfully removed whatever was causing the blockage under or beyond the U bend.
The water starts to flow again and then blocks up again after a couple of days.
I have gone through this routine several times and it's now blocked again for the 4th time!
I have contacted our water authority who say that this (final) drain is on our property so is our responsibility.
Has anyone any ideas on what is causing the problem and how it can be permanently cured?