Vinegar is both safe and beneficial to pour down your drain. It acts as a natural cleaning solution and can remove blockages and harmful bacteria that cause foul odors.
Both baking soda and vinegar are highly caustic. They are, in fact, able to dissolve certain materials that one would not normally think of as being dissolvable. However, the extreme amounts of acid in vinegar, along with its acidic nature, are what cause the drain to become blocked.
This can help prevent clog-causing buildup on the interior surface of pipes. Or you can pour one cup of vinegar down the drain and let it sit for 30 minutes, followed by a rinse with two quarts of very hot water.
In reality, even simple DIY methods like the baking soda and vinegar technique that's often used to clear a drain clog, can be harmful to your plumbing system.
Use a natural drain cleaner.
Mix together 1 cup of vinegar (distilled white vinegar works best) and 1 cup of baking soda. First, pour boiling water down the drain to loosen; then follow with the baking soda-vinegar mixture and wait 15 minutes. Rinse with more boiling water.
The answer is that vinegar will not harm your pipes if used in small doses as recommended in many of the recipes that you find online. No matter what your pipes are made of, pex, pvc, copper, etc. Vinegar will not harm your water pipes.
Baking Soda + Salt
Mix 1/2 cup table salt and 1/2 cup baking soda together, and pour down drain. Let sit for about 30 minutes (or overnight if it's a tough clog).
If your drain is clogged with hair, baking soda can dissolve hair in a drain. To try this safe and easy method at home - first, pour a cup of baking soda down the drain. Then pour a cup of vinegar (white vinegar) down. Allow the mixture to sit for several minutes.
Boiling water poured into the drain is a quick cleanser for minor odors. A baking soda, vinegar, and boiling water combo can add extra power for breaking up the buildup in your drain's pipes. Periodically adding baking soda down your drain can keep the sink fresh and odor-free.
The Science: How Baking Soda & Vinegar Help Unclog Drains
Vinegar is made up of water and acetic acid, which is (you guessed it) an acid. When you combine these, a reaction happens where molecules get exchanged, creating carbon dioxide and water that bubbles through the clog, breaking it up to create loose material.
Baking soda and vinegar is a marvelous cleaning agent, and when dumped into a clogged toilet, often will break up the clog without you having to do a thing. This is what you want to do: combine two cups hot water with two cups white vinegar.
Pouring boiling water is quite risky as it might lead to a steam burn or scalding. Another thing to keep in mind is what type of material you are pouring in into. If you have a porcelain sink, it is likely to crack due to the heat. All in all, pouring boiling water down your drain will only cause issues down the road.
The "creepy black stuff" in your drain is made up of a combination of things, mostly decomposing hair, soap scum, toothpaste grit, shaving cream residue, skin cells, etc.
Make sure to use a 1:1 solution of distilled white vinegar and water. Spray it onto the sink, leave for a minute or two, then wipe and rinse. The solution shouldn't be left on the sink for longer because it can damage the stainless steel in the long term.
For stubborn clogs: baking soda, salt, and vinegar
To clean your drain with baking soda, salt and vinegar, mix half a cup of baking soda with half a cup of salt and pour the mixture down the drain. Boil 1 cup of vinegar and pour it down the drain — the combination will cause a fizzy and bubbly chemical reaction.
White Vinegar and Baking Soda
All you got to do is run hot water for a few seconds and pour one or two cups of baking soda down the drain plug hole. And then add a couple of cups of hot vinegar. Let it foam up and wait for an hour or two. Flush it through using hot water.
If you have cleaned your toilet thoroughly, and there is still a smell of Urine don't fret just yet. In many cases, a constant urine smell is likely due to a leaking seal, which is located under the toilet and seals the point between the toilet and the drain.
Pour a generous quantity of baking soda into the smelly drain. Wait for about 45 minutes, and then pour down an equal quantity of vinegar. This will cause foaming as the vinegar reacts with the soda (great science project for the kids). Wait for another 15 minutes before running hot water down the drain.
While the phosphoric acid found in cola can help alleviate some minor clogs, carbonated beverages are certainly not the ideal drain cleaner. Better DIY methods include a baking soda/vinegar mixture, a plunger, or a plumber's snake.
It's certainly possible; boiling water can melt or loosen the gunk holding the clog together.
Try Using Boiling Water to Fix a Clogged Sink
Most clogs in sinks and tubs are due to a combination of hair, grease, soap residue, and tepid water that are trapped in the drain trap right below the drain opening. If you have metal pipes, you can try to loosen the clog with hot water—very hot.
Baking soda is a base and vinegar is an acid; when the two are combined, you get a fizzy chemical reaction that has some properties that can eat away at a clog. However, when you use this combination to unclog a drain, it's just plain ineffective.
The mixture quickly foams up with carbon dioxide gas. If enough vinegar is used, all of the baking soda can be made to react and disappear into the vinegar solution. The reaction is: Sodium bicarbonate and acetic acid reacts to carbon dioxide, water and sodium acetate.