Ok, older farmer, doing cancer treatment. Cant go out as much as he used to. Common issue for watering his cattle, is the well. He wants a light installed outside (most likely red), so he can see it from the house. But doesn't care about it running, or holding pressure. He just wants the light to be on when he has a "0" pressure reading, so he knows well has an issue.
Thank you in advance for any help
Thank you in advance for any help