Question Water Tower4 issue

Has something changed. Been using the Electic water towers over  year. Now they are running out of water causing plants to die.

Its in the Pack 8 electric

Update : water towers are on a 3x3 region and have been working fine until about a week age. I now see they are not self filling and feeders run out of water, Relaced towers and over time they run out of water as well and are in the farm group.

I have heard other people say they have issues on 3x3 or larger regions. At the moment the largest I have tested on is 2x2 so will plan to do some tests to see what could be the problem on larger regions.

I replaced the Electric Water towers to the original starter pack towers yesterday, so far they are maintaining 90 - 100 %