Cost To Repair A Leaking Water Pipe In 2022

I have this old cash iron pipe that is rotting from the inside and I have been making cheap quick repairs for a few years. This thing needs to be replaced but I just hate to do such a large job on my own or spend the big bucks for a pro.

PC Products PC-Plumbing Epoxy Putty,
leaking cast iron water pipe quick fix

So I was told about fixing leaks with epoxy and some black tape and this really works well and I have one repair that has been holding for a few years already. It gets the job done.