You can put it down but it's useless. Go to a Plumbing warehouse and get 'Zonk'. First, take apart the U trap and see if you get the obstruction.
Call a plumber to snake out your kitchen drain line. Do NOT pour acid down your drain. Do it right and it will be almost good as new. (I'm an optimist)
You have a blockage in your drain line just past where the kitchen sink drain ties in. You should call a plumber to run a snake through your drain. DO NOT pour acid down your drains! This will ultimately make things a whole lot worse in the future.
You can improvise a drain cleaner by pouring baking soda down the drain (bail the sink or tub out first), then following with vinegar. Let it foam for a few minutes, then flush with hot water. Serious clogs may need Liquid Plum'r or Drano. (These are caustic, and can burn skin, so be careful. If you use them and still need a plumber, let the plumber know you used them; nobody likes a surprise like that.)
another clog, further down the drain pipe. You need a drain snake.
Somewhere down the pipe from where the washer and kitchen drain combine, there is a blockage. You will have to find where these join and look further outward for a 'cleanout' plug, then fit a snake down this plughole.
In a conventional household, water from a kitchen or bathroom sink flows down a drain. This drain leads to a storage compartment that is periodically emptied.
The biggest and most important tip for maintaining the kitchen plumbing is to never pour oil down the drain. Pouring oil down your drain is the worst thing you can do.
Drano is one of the them. Liquid Plumbr (correct spelling) is another that will unclog stopped up drains and improve the flow of slow ones. Many people dump a pot of boiling water down the drain once a week to melt any soap and grease buildup. If you do that regularly, you can keep the drains flowing. You could also run a plumber's snake down the drain and manipulate it, or use a plunger to break up the clog and move it along. But never use the plunger or the snake if you've just dumped Drano, Liquid Plumbr, or other caustic substances down there. What I do -- as much as I HATE to do it -- is remove the P-trap and clean it out. It's gross but effective.
You can put it down the drain, nothing is really stopping you from doing so but you shouldn't put it down the drain. Liquid nitrogen is extremely cold and can have explosive consequences once it sublimates into a gas and could potentially burst your pipes.
Well there are many ways you can repair or fix your clogged sink. One is to by a snake it is like this long tube you can stick down the the drain of the clogged sink and pull the gunk right on up. There is also another solution you can easily buy liquid plumber. Then there is the simple method the plunger.
Putting it down a drain.
You can put a liquid pipe snake down your drain or put a hose down there