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Anonymous users2024-01-24You need to look at the type of floor drain, the ordinary floor drain with a trap can not cope with a large amount of water discharge at the same time, it will overflow from the floor drain, if it is a large flow floor drain similar to a submarine, there is no big problem.
If the old washbasin drain has not been aged and the model is the same as the new washbasin drain, it can continue to be used.
It should not be like this, it should form a funnel shape. The center is the lowest floor drain. Easy to drain the ground. It's not okay to have only one row or column below the other.
The master is more experienced, and this practice is to have a place to drain the water that seeps into the mortar layer of the floor tiles in the future, so as not to cause water leakage due to water accumulation. However, these holes are small in number and size, and they are easy to be blocked, and they may not work for a long time.
The washbasin water pipe is generally broken under the sink, you check whether the faucet used is integrated or combined, if it is the kind of one, you have to buy a complete set of faucets to replace it, and the combination of the kind only buys a short pipe to replace it.
Judging from your description and pictures, there is no doubt that the place where the floor drain will leak, mind doing it again waterproofing; The toilet seems to have been waterproofed, for the sake of insurance, adding a layer of waterproof glue is beneficial and harmless (the toilet can not be asphalted). In addition, it is the responsibility of the decoration workers to do a good job of waterproofing, and if necessary, they can ask for a warranty period. Hope it helps!