The Pennsylvania Attorney General's Office has filed a lawsuit against an Erie County man and his father for allegedly defrauding Pennsylvania consumers by recommending the unnecessary replacement of sewer pipes.

Nolan Stahl, of Erie County, formerly worked for his father, Howard Stahl, of Allegheny County, as a service technician and supervisor.

Nolan Stahl currently does business as Rooter Man in many western Pennsylvania counties, including Erie and Crawford, according to the Attorney General's Office.

The investigation revealed while Nolan Stahl worked for his father's business Roto-Rooter, Howard Stahl was aware of complaints against his son and other service technicians who were recommending unnecessary repairs.

The Attorney General's Office alleges Howard Stahl still demanded payment from the defrauded consumers, did not cancel contracts in a timely manner and failed to take any corrective action against the service technicians.

The lawsuit seeks a preliminary injunction.