![Advantages and disadvantages of Swabbing](http://www.thewatertreatments.com/wp-content/uploads/2010/05/swabbing-pipeline.jpg)
Advantages and disadvantages of Swabbing
The advantages of swabbing of pipeline are :
The technique is simple and cheap,
It is free from mechanical gadgets,
It does not require much opening of the trenches, if adequate facilities are provided...