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1. Yes.
2. The reason is that according to the regulations, the water supply pipeline of the indoor fire hydrant can be combined with the domestic water (under the condition of meeting certain conditions), then it can be located in the toilet (we mostly see the domestic water supply riser go to the bathroom).
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The fire hydrant riser should not be installed indoors, because the residents will suffer losses during indoor maintenance, and can only be installed outdoors, once rusted, it can not damage the residents.
Only the gas main pipe does not pass through the bedroom, and it is in compliance with the code under the condition of ensuring safety.
There is no need to set up a telescopic joint in the toilet riser, because the temperature difference does not change much!
If the matter of the establishment management cannot be reached through negotiation, it can be resolved by litigation. The loan deposit is essentially in the nature of liquidated damages, and there is no problem of violations, which is an agreement between the two parties.
It is best to take the spacing in the pipe of the H-through pipe fittings as the standard.
This is convenient for later maintenance and shows you how the site is arranged.