There is no standard, because the water and sewer services can either be individual or part of the community's obligations.
Backflow from the sewer or drain pipes.
Depends on where you live. The cost of living is not the same everywhere. To get a answer on your question you need to give a city or area.
Water can come from the tap or it can come from the drain -- one or the other.Assuming that you didn't turn on the water to fill the tub, perhaps the sewer system drains are backed up.
No.
To stop sewer gasses from being expelled from the sewer
Goes straight to sewer
The average monthly sewer bill in Hawaii is around $40 to $100, depending on the location and water usage of the household. Prices may vary based on the county and specific utility provider.
Read your governing documents to determine who owns the part of the sewer line that is clogged. As an owner, you may own the section within the unit; the association may own the remainder. It will be a good idea to handle the clog, so that no damage from water occurs. Then, you can work with your board and property manager to determine who pays to unclog the line.
sewer
The purpose of a sewer pipe is to collect waste from drains and peoples homes and transport it through the sewer system to the sewer plant. There it is treated and the water is recycled.
The sewer charge on your water bill is a fee for the removal and treatment of wastewater from your property. It covers the cost of maintaining and operating the sewer system that transports and processes the wastewater.