Is the TOTO toilet 854 a low grade product, the toilet drains slowly and has no suction

Generally, it is 30 cm away from the finished surface of the wall, but now it is a double-hole spare, and you can choose whether it is 40 cm or 30 cm. The unused one can be plugged with a sealing cap!

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No, it's injection molded, it's a bit like die casting in casting, but it's not.

Yes, it depends on what series model it is.

Because there is a sewer pipe connected under the toilet, if you want to move the toilet, you must first move the sewer pipe, and it will also involve the owner downstairs, so the amount of work is large, so I advise you not to move the toilet as much as possible.