Water Bills are inflated due to pension and health benefits. Sewer bills are larger than water bills. So much padding - big city water needs to be privatized.
You won’t get a private company to take over a mess like Detroit’s water utility, and, most prvitized water utilities are a bigger mess than municipal. The private company also has to make a profit...which will be included in the bill
Better yet....Detroit should get some military sanitation engineers and teach the folks how to build a latrine pit. Outhouses don’t need much water