Grapefruit peel, orange peel, orange peel, can be used in this way, after cooking, to remove the smell of the sewer. If you peel off the peel, do not plan to boil water immediately, put in the sun after air drying, the effect is the same. Kitchen and toilet sewers have been used for a long time. If you don't clean them regularly, there will always be an annoying smell, right?
Try this:
1) Peel off the grapefruit peel, cut into small pieces, put into the pot, pour in water.
2) Bring to a boil over high heat and continue to simmer on medium heat for 10 minutes. Then take out the grapefruit peel and slowly pour the water into the sewer while it is hot.
3) Once every two weeks, or once a month, depending on your convenience.
This method can not only remove the smell of sewage, regular use, but also remove the daily accumulation of oil pollution on the inner wall of the sewer.