Thanks go out to Donna from Bodin Realty for having the confidence in us to install sewer cleanouts in a nice home in Broomfield. The original cleanout in the basement is only 2 1/2" wide, so full 4" root cutting was impossible.
We scoped the sewer service line, finding significant roots in several pipe joints.
This is where outside cleanouts are needed. Now we can do a routine yearly root cutting maintenance with a full 4" cutter blade and get many more years of service from this concrete sewer line.