There is a thin slit in the lower left side of the toilet that keeps leaking, what should I do?

The float in the tank is set too high, just turn it down a bit.

You're an older tank fitting. Mainly 4 parts, that is, the water plug is aging or there is scale caused by the loose sealing, the water seeps into the potty, the water level in the tank drops, the float (2) falls, and the water enters (3) to replenish, and it will make a sound. You can see if the water blockage can be cleaned up, or you can only replace it with a new one.

The reference given by the landlord can not be answered correctly, from the overall analysis, it should be caused by the water level in the water tank is too high (the water float valve is not closed tightly), if the water level in the water tank is in the second or third picture, or leaking water into the toilet, it is the 、-- caused by the deformation of the sealing gasket or the edge of the drain port with foreign objects and damage >>>More

After preliminary analysis, it should be that there is a water leakage at the outlet of the water tank, which causes the water level to drop, and the float valve opens to automatically enter the water. That's why there's always the sound of running water.

Yes, the smell contains harmful substances such as ammonia and hydrogen sulfide, and may also carry bacteria, which is also bad for ordinary people.