A clogged drain can be frustrating and even unsanitary so address it as soon as possible. Though using products that contain harsh chemicals may seem like the best solution, this can damage galvanized piping. Calling a plumber is an alternative but it can be very expensive. It takes only a few tools and a few minutes to unclog a galvanized pipe drain so get to work!
You will need:
Step 1: Find the curved section of piping underneath the sink and look for the large bowl at the bottom of this area. This is the drain P-trap and it may be the cause of the clog. Removing and flushing out this section may get water flowing through the drain. Position the bucket under the P-trap and use the plumber’s wrench to unscrew the nut in the trap, allowing the water to drain into the bucket. Remove the P-trap, go to another sink, and run water through the trap remove any clogs. If the trap is not clogged, the clog is located further along the drain system.
Step 2: To locate the clog, insert a hose pipe into the galvanized pipe. This will travel down the pipe and stop when encountering a blockage.
Step 3: Stuff some rags around the opening of the opened drain pipe. Use the screwdriver to pack more rags between the hose pipe and the sides of the drain pipe, creating a secure fit.
Step 4: Connect a garden hose to an outdoor spigot and run it through the house. Attach the garden hose to the hose pipe inserted in the galvanized pipe.
Step 5: Have someone else turn on the water to the garden hose. As water flows into the hose pipe, it will reach the clog. Since the drain pipe is stuffed with rags, the water can only travel downward, which forces the clog to travel further down the pipe. Once water pressure builds to a certain level, it will force water through the clog.
Step 6: Turn off the water to the garden hose. Position the bucket under the hose pipe and remove the garden hose, letting excess water drip into the bucket. Remove the hose pipe and the rags.
Step 7: Use the plumber’s wrench to reinstall the P-trap. Run water into the sink basin to verify that there are no leaks. Water should now flow out of the basin and into the drain pipe without backup or delay.