How to clean the sewage pipeline in hotel kitchen with quick-acting oil agent when it is blocked by oil pollution

1, animal fat plug: 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 clean the pipe with that special tool.

2, cement plug: 70% hydrochloric acid can not be found, 35% are sold everywhere, you can try. Add a little flour to act as a corrosion inhibitor, and urotropine is the best. The corrosion of steel can be reduced.