Below is a great blog that can be found at Johncflood.com. The topic is great advice to help the homeowner avoid being screwed by dishonest contractors that may be lurking out there! Sewer line repair or replacement is rarely necessary, yet it's happening more and more often to unsuspecting home owners....
5 signs of a sewer scam
Catastrophe strikes. A plumber comes to complete what appears to be a fairly simple sewer line clearance and then -- uh oh, there’s some trouble and you need a full replacement. When disaster strikes seemingly out of nowhere, talk to another professional before agreeing to any additional, major work.