Best Way To Clear A Drain Pipe ((full)) -

This is the "gentst" approach and works best on slow-moving drains caused by soap scum, grease, or toothpaste.

Scrub the inside of the trap with an old toothbrush and reinstall. Why You Should Avoid Chemical Cleaners best way to clear a drain pipe

These are inexpensive and perfect for sinks. Feed the cable into the drain until you feel resistance, then crank the handle to chew through the clog. This is the "gentst" approach and works best