How to solve the problem of toilet spray on the second floor

The problem of toilet water spraying on the second floor may be caused by the failure of internal parts of the water tank or improper water level adjustment of the water tank. Here are some possible solutions:

1. Check the internal parts of the water tank: open the cover of the water tank to see if there are any parts damaged or invalid inside the water tank. If problems are found, they need to be replaced.

2. Check the water level adjustment: check whether the water level of the water tank is normal, and if it is too low, raise the water level. You can try to adjust the height of the water level regulator above the water tank until the water level is normal.

3. Cleaning the water tank: Sometimes dirt and sediment will accumulate inside the water tank, so it is necessary to clean the water tank. You can use professional cleaning liquid for cleaning, and you can also use ordinary cleaning agents such as washing powder to ensure thorough cleaning.

If the above methods can't solve the problem, you may need to ask a professional plumber or toilet maintenance personnel for on-site inspection and maintenance.