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This doesn't need to be turned on all the time, it is usually only turned on when taking a shower and going to the toilet.
If the water seal of the floor drain or basin is gone, it will stink, and there must be a water trap.
After the bathroom is renovated, it must be filled with water for about 24 hours, but there is no need to keep the water flowing.
Definitely not, bath bomb in the national standard "Safety of Household and Similar Electrical Appliances" belongs to the bathroom bath heating equipment, not a long-term open equipment, you will cause unexpected dangers if you leave it open for a long time!
Whether your bathroom has a single pipe or many pipes, you must have a trap designed to prevent odors from rising in the pipes and from living up in the sewer.
Water leakage is always bad, although a little, but it can also flood, damage the wall and not to mention, leakage and leakage!