Whats wrong with the water / wastewater?

[Wumpo-Botan]

Is it bugged or something?
I need like dozens of Wastewater treatment plants at 70K citizen to run my town.
Is that normal?

[Stant123]

Normal? Don't know as I've only built one city thus far, but I have a town of 150k population, 3 wastewater treatment plants (+5 extra processing units and 1 advanced filtering system upgrades spread around between them), 2 sewage outflow pipes (+2 settling tanks and the chemical treatment upgrades on both), and 6 water pumping stations (no upgrades on any of them). This is giving me enough to have about 20 million gallons of treatment capacity over what I need and 33 millions of gallons in fresh water over what I need which is being traded away.

I honestly wouldn't rely on wastewater treatment plants to do the bulk of the heavy lifting creating fresh water as it only purifies 50-75% of the sewage, and if you don't have fresh water, you don't get sewage that can be treated and turned into fresh water, and without that fresh water, you don't get sewage that can be treated.... Round and round you go spiraling out of control. So you may be limiting yourself based on available fresh water. I'd recommend building water towers or pumps to boost up your fresh water supply capacity to what you actually need and then get rid of all but a few of the treatment plants to cover your sewage needs if you don't want to use outflow pipes.

[Agamemnicon]

This game needed mods *yesterday* to circumvent these annoying mechanics and make basic services more powerful. I feel like half my map is power plants, schools, medical, police/fire, and water-related services.