For some reason, the tube well in the hotel corridor has serious water seepage, and the tube well is adjacent to the guest room bathroom. Is the waterproof layer not done well or the height is not eno

For some reason, the tube well in the hotel corridor has serious water seepage, and the tube well is adjacent to the guest room bathroom. Is the waterproof layer not done well or the height is not enough? Generally, tube wells are not waterproof, only toilets are waterproof. This phenomenon may be the waterproof damage of the bathroom, or the water pipe in the bathroom leaks. It is suggested to check the water pipes in the bathroom first to see if there is any water leakage. If not, it can basically be said that the water pipe in the bathroom is broken and can only be waterproof again.