Posted in green hacks Tagged alarm, led, level, ... I believe a column of water exerts .044 PSI per foot. water tank full level of 10′ the pressure would only be .44 PSI at ground level, ...

[Renzo Mischianti]’s friend has to keep a water tank topped up. Problem is, the tank itself is 1.5 km away, so its water level isn’t typically known. There’s no electricity availa… ...

Mumbai: A 23-year-old engineering student from Chandigarh has helped the Western Railway (WR) set up an alarm system to detect the storage level in water tanks in trains.