: Use 7-Zip (Windows), The Unarchiver (Mac), or ZArchiver (Android).
: Use a "zip-it" tool or a bent wire hanger to pull out hair clogs from the pop-up stopper or P-trap. HowTo_ClearPlumbing.7z
: Place a bucket under the sink, unscrew the slip nuts on the U-shaped pipe (P-trap), and manually clear any debris. 3. Toilets : Use 7-Zip (Windows), The Unarchiver (Mac), or
: If the file asks for a password and you don't have it, you will likely be unable to view the text. : Use 7-Zip (Windows)
If you are trying to open that file on your computer to read its specific instructions:
: If plunging fails, use a closet auger (plumbing snake) to reach deeper into the trap. Technical Note on .7z Files