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The smell can be very unpleasant. The sewage well has two layers of lids to prevent back-odor; Stormwater pipes are without lids, and using iron grates will permeate odors.
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Going straight to the storm sewer will definitely smell bad, so you can't do that.
First of all, from a normative point of view, it is definitely not discharged, the rainwater pipe is to drain rainwater, how far can your small sewage treatment device treat. >>>More
Domestic wastewater flows into the sewage treatment plant, and balcony rainwater is discharged directly into the river.
It depends on where the storm pipe leads to, if it goes to the sewer, if it goes to the ground, it's better not to be a drain for the washing machine, after all, it's all neighborhoods, don't affect the life on the first floor
First to the septic tank, after the dissolution, then to the sewage pipe, then to the sewage plant, and then discharge.