Description

Looking for a water tank level meter that’s easy to install? One that’s accurate, but doesn’t need a complicated in-tank sensor? This PIC-based unit uses a pressure sensor to monitor water level and it displays tank level at the press of a switch. It can also send its readings to a base station with an LCD readout via an RF link.

Saving water is vital, the ‘green lobby’ is continually advising us, and using rainwater tanks to store otherwise wasted precious rainwater is now all the rage. Why pay for water when you can catch it for free! One traditional problem with water tanks is checking how much water is in them. That’s because they are opaque and they are made that way to protect the water from sunlight which would otherwise promote algae growth. Trying to look down through the water inlet into the dark interior doesn’t help much because this is invariably gauzed over to keep insects out. And although some large concrete tanks

have a manhole, this usually takes some effort to remove, so it’s not a convenient way to check the water level.