You can do this from the top end if you re lucky.
Cleaning bathroom sink drain.
The best homemade natural cleaner would be a combination of baking soda and vinegar.
The heat will help break up the debris.
Therefore the best way to unclog a bathroom sink drain is to get inside the drain and pull out the clog.
Use a soft scrubber brush to scrub the rust away gently.
It is time to clean the drain with baking soda and vinegar.
Just drip the baking soda continued by vinegar into the drain the dirt and debris will remove automatically.
Let it sit for an hour before flushing hot water down the drain.
Clean your drain monthly with household products.
Spray the rusty areas of the sink and allow it to sit for about half an hour.
Instead of a packaged drain cleaner use salt baking soda vinegar and or lemon juice to deodorize and clean your sink.
To clean tough residue from a bathroom sink drain using natural ingredients start by pouring a half gallon of boiling water in the drain.
How to clean a bathroom sink now that your sink drain is free from any clogs now you just need to clean the rest of the sink meaning the basin faucets and spout.
Otherwise it takes just a few minutes to open up the drain from below and give everything a thorough drain cleaning.
Mix whichever of these you have on hand into about a cup of solution and pour it into the drain.
You may also want to plunge the drain a few times to further loosen any blockages.