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If it's made of metal, it's connected.
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If it's made of metal, it's connected.
No, no, no, no, no, no, no, no
Do not link the socket to the equipotential junction box. As long as it is reliably grounded, it will do.
That's impossible, the urinal is 20-30 cm high, unless you have reserved it when building a house, otherwise it can only be one step higher, but the toilet is not needed.
Toilet equipotential connection is 100 effective and can be tested.
The sewer pipe is with a storage bend, choose the one without a water trap, the toilet seat sewer pipe does not go out to play where you need to use the toilet to go out to play, the sewer has a trap, if you choose a toilet with a trap two pure water inlets exist at the same time, the launching speed will be relatively slow in the process of launching, and there will be a bubbling phenomenon, and it will also affect the use.