Question
My second-floor kitchen drain is leaking behind the wall.
The drain is a 2-inch galvanized pipe.
The leak is between the first and second floors.
An inspection camera showed a seam opened about 1/8 inch.
Should I wrap the pipe with epoxy tape or replace the bad galvanized drain with PVC?
Answer
The safer long-term fix is to open the wall, support the pipe, remove the bad galvanized section, and replace it with properly sized PVC.
Why Epoxy Tape Is Not My First Choice
Epoxy tape may slow a small leak for a short time.
But this leak is behind a wall.
That makes it a bigger risk.
A failed patch could leak again without warning.
Water may damage framing, drywall, cabinets, and flooring.
An old galvanized drain pipe can also rust from the inside.
So the visible split may not be the only weak spot.
A Better Repair Plan
The better plan is to make a clean access opening near the first-floor kitchen tee.
Then the old galvanized tee can be removed.
The pipe above and below the tee should be supported before any cuts are made.
This is very important with a tall 2-inch galvanized pipe.
That pipe can be heavy and hard to control.
Working near stairs adds more risk.
Cinder blocks should not be used as a work platform.
A stable ladder, scaffold, or safe platform is a better choice.
Cutting and Lowering the Pipe
Before cutting, fasten solid blocking across the framing.
Use strong pipe straps or a rated lifting method.
Paracord may not be safe for this job.
The pipe can shift, bind, or drop while being cut.
A reciprocating saw with a metal blade can cut galvanized pipe.
But the pipe must be held before the final cut.
Once loose, the pipe can be lowered into the basement.
Replacing With PVC
The new drain should match the needed pipe size.
Use approved shielded transition couplings where PVC meets metal pipe.
Follow local code for pipe size, slope, venting, and cleanouts.
You can review general drain and vent code terms at the International Code Council.
You can also read safe ladder guidance from OSHA ladder safety.
Final Thought
This is not just a small pipe leak.
It is a hidden drain failure between floors.
Opening the wall is more work now.
But it gives you a real repair.
It also helps prevent water damage later.