Why doesn't my water tower fill?

[taylorawillis]

My water setup is as follows: large well -> large water pump -> large water treatment -> large pump -> water tower. All pipes between the well and the tower are large pipes, the stated capacity of which greatly exceeds the amount of water actually flowing. The treatment plant is fully staffed but only producing at 50% for some reason.

Here is the water extraction setup:
https://steamcommunity.com/sharedfiles/filedetails/?id=2795565358

Here is the water tower:
https://steamcommunity.com/sharedfiles/filedetails/?id=2795565320

[WGB24]

Do you have a pump between the treatment plant and the tower

[Duke Flapjack]

Look at your input vs your output. More water is flowing OUT of your tower than in it appears.

[moa]

Yes, the meter in the middle of watertower is showing 33m³/d is used, same in the overlay.
First screenshot shows the pump after treatment plant is transfering 49 and 15 from the plant to the respective places. Plant at time of the screenshot was only producing 51m³/d.

Are the water substations least filling? Meaning the beaker getting filled more? In that case once the initial demand is met it might work as it is.

[taylorawillis]

Originally posted by WGB24:

Do you have a pump between the treatment plant and the tower

Yes; there is nothing but a large pipe between the pump after the treatment plant and the water tower. I tried adding a second pump closer to the tower but the only effect was to lower (???) the input water pressure to the tower.

Originally posted by Duke Flapjack:

Look at your input vs your output. More water is flowing OUT of your tower than in it appears.

That's the problem. Both the well and the treatment plant should be able to produce a lot more water than they are - both are fully staffed - but they don't rise over what is shown in the screenshot for some reason and I can't figure out why.

Originally posted by moa:

Yes, the meter in the middle of watertower is showing 33m³/d is used, same in the overlay.
First screenshot shows the pump after treatment plant is transfering 49 and 15 from the plant to the respective places. Plant at time of the screenshot was only producing 51m³/d.

Are the water substations least filling? Meaning the beaker getting filled more? In that case once the initial demand is met it might work as it is.

The water substations' beakers are all filled; I've had this setup in place for about a game year. For the first 9 months or so the water tower actually did fill. The substation drawing 15.54 m^3 was originally connected using a small water pipe, which I upgraded to a large one after buildings connected to it complained of lacking water. After I upgraded the pipe is when the problem began. It's not clear to me why upgrading the pipe helped, either, since 15.54 is barely more than half the capacity of a small pipe.

[taylorawillis]

As a test, I added a second well; the original well reduced its production accordingly. Same happened when I tried adding a second treatment plant.

[moa]

Interesting. I guess the internal storages of treatment plant and well are full?
Then there might be an issue behind the treatment plant with the big pump having two kinds of pipes connected on the output side. Try upgrading one or both small pipes that go from treatment to the big pump.

[taylorawillis]

Yes; both well and treatment plant have full internal storages.

Those are both large pipes that go from treatment plant to pump.

I was able to solve the issue by building a small well and small treatment plant closer to the water tower, then connecting them to the tower. There were a lot of buildings that turned out to have been having intermittent water supply, and now the tower is filling up again. I have no idea why that's solving the problem when the original treatment plant and well are only running at 50% capacity. The new ones do seem to be stuck at 50% capacity as well; is that the maximum for some reason?

https://steamcommunity.com/sharedfiles/filedetails/?id=2795854436

[moa]

Text in the treatment plant: 'Maximum amount of toxic liquids eliminated' that is roughly 10%. Maybe there is a mechanic that if you desire more then that, they have to treat the water twice (hence 50%).
Each building in a 230-250 radius around the well will contaminate the water source. So you can have a source with 95% water at best. Having that will reduce the amount of chemicals needed.
The thing with the multiple treatment is news to me, if that is how it works.