my villiagers have been watering the grass now for 30 hours now solid? what is thier and will they soon stop?

oh, you're on VV1

I think you need to upgrade a tech level first but not sure

I didn't want to risk putting a spoiler in the shout box... (But you said there almost three days, but here 30 hours. How long is a day on your planet? )

You should make sure that they are watering the field from the correct water supply.

And make sure that you have trained builders working on it.