Scottish Water said it dealt with more than 40,000 blockages in the drains and sewer network.
Most were caused by people putting things such as cooking oil, nappies and baby wipes down sinks and toilets.
It is running an awareness campaign to highlight the issue, which it said creates costs of more than £7m a year.
A series of television and radio adverts will urge householders to dispose of kitchen and bathroom waste responsibly.
To all our Scottish cousins, a plea...
Please dispose of your Pooh's responsibly.
Edited by Leonardo, 17 February 2014 - 01:40 PM.