Recently I've been experiencing some backup with my toilet and tub due to some roots in our line. I've had Roto Rooter come out a couple times to do their thing and cut out some of the roots to alleviate the problem and it's worked out pretty well except they needed to go through our toilet both times since there is no sewer clean out located on our property and we live on a slab so there is no basement.
Roto Rooter kindly offered to install one for us for around $3,500, however I was wanting to save at least some of that money and do it myself. I've heard the worst part is doing the digging and I'm looking for some advice. I believe our line is 4" cast to some poorly repaired 6" clay.
How difficult is installing a clean out yourself? What kind of supplies will I need?