1. Animal fat blockage: If it is oily, it is recommended to use boiled water. Of course, it would be better if you could buy concentrated sulfuric acid. If something is blocked, you can only use the special tool for cleaning the pipeline mentioned upstairs.

2. Cement blockage: 70% hydrochloric acid can't be found, and 35% is sold everywhere. You can try. Adding a small amount of flour acts as a corrosion inhibitor, and urotropine is good. The corrosion of steel can be reduced.

3. Go to the market to buy a 2-meter-long spring steel pipe dredging tool, bend the head 1-2cm to 10-20 degrees, dredge it back and forth at the entrance and exit of the sewer, and rinse it with water.

4, soda vinegar dredging method: first pour half a cup of cooked baking soda powder into the sewer, and then pour half a cup of vinegar. After the soda reacts with the acid in the vinegar, the sticky substances in the pipeline can be removed.

5. Using hydraulic dredging method: Take a plastic pipe (or rubber pipe) with a diameter of 10 mm and a length of about 1 m, fix one end on the faucet, and insert the other end into the blocked part of the pool, wrap the rubber pipe with cloth to block the water outlet of the pool, turn on the faucet and tighten it, so that the water pressure is enough to wash away the blockage.

Rinse with boiling water, most of the blockages in the water are grease blockages, and boiling water can dissolve them.

(2) A good idea is to call the housekeeper to get rid of the disease at hand.

(3) If it is oily, it can be washed with 20% sufangda. If something is blocked, you can only use special tools.

6. The simple method is as follows:

(1) Flush the waterway with boiling water in a large pot.

(2) Then poke a few times with thick wire until the boiling water runs out.

Second, how to prevent the kitchen sewer from blocking oil?

1, regularly clean the kitchen sewer with boiling water and washing powder. Usage: Boil a pot of boiling water, add washing powder, and rush out of the vegetable washing pool together to dissolve more oil stains on the pipe wall. This method is effective in winter.

There is a funnel-shaped thing in the vegetable sink, which can filter out the big residue and try not to take it down. Extend the pipeline blockage period.

3. Toilet sewer: Toilet is usually connected with bathroom and washbasin. Most of the sewers in washbasins and bathrooms are caused by hair. The blockage of the toilet sewer is mostly caused by the user's carelessness, or carelessness or throwing the toilet sewer into it as a trash can.

Try to clean your hair when you are grooming, and don't rush into the sewer directly.