This bad waste arm was removed at a 1960’s home in South Tampa today on El Prado. When kitchen drains stop up, many times it is a result of a problem in the waste arm. Drain stoppages also occur further downstream on the pipe past the base of the stack. Many plumbing technicians will get a ladder out and climb on the roof if you have a drain stoppage. This is not the correct way to cable out a kitchen drain. If you go through a vent on the roof you will bypass the kitchen waste arm. It is also important to have the entire kitchen drain TV inspected when you have the drain cabled or cleaned. Tampa Bay Plumbers performs high pressure jetting to clean and descale old cast iron pipes.