Recently a wastewater plant decided to replace their current sensors with sewage level sensors after they had found the cause for the inaccuracy of the wastewater level.

Sewage Level Sensor Used in Wastewater Plant

One of the sewage pump stations found that the water level had no change while the actual liquid level was 1m already. Through troubleshooting they found it was resulted from sensor failure after dismantling the sensor, they found the diaphragm had been corroded and seriously blocked, which caused the pump system fail. Actually, what they used was a conventional level sensor which is not suitable for wastewater plants. What really suits them is a sensor which can work in highly viscous liquids with suspended solids such as sewage, effulent, sludges and slurries.