The floor tiles of the bathroom are paved and there is no floor drain in the basin

The floor drain does not have to be set at the basin, as long as the room has a floor drain at the lowest point. The downpipe of the washbasin is directly connected to the drain branch.

Hello, I don't know if you are repenting about the crack, you are saying that there is no water or no floor drain in front of you, if you don't go into the water, you can change it again, it doesn't matter if there is no floor drain, there are other floor drains in the room, and the water can still be drained away.

There is no floor drain or no drain at the basin, it doesn't matter if there is no floor drain, it is enough to have one in the whole bathroom, if there is no drain, it will be troublesome, and it needs to be re-laid, the order is slotting, down pipe, docking, doing waterproofing, testing waterproof, and pasting tiles after waterproofing. If you don't want to add it, then make a hole in the counter below the sink of the washbasin, change the drain to the outside, and put the bucket outside, which is not very good-looking, but the dirty water received can be flushed to the toilet, which is very cost-effective and practical. Some of my customers specifically asked us to change the original sewer to this one, which saved a lot of water for flushing the toilet.

As long as it can drain it, it's okay to have no floor drain, and it's OK to have a floor drain in the bath.