A person was using water supplied by corporation. Due to shortage of water he started using underground water. He felt laxative effect. What could be the cause?

A person was using water supplied by corporation. Due to shortage of w

1.	A person was using water supplied by corporation. Due to shortage of water he started using underground water. He felt laxative effect. What could be the cause?
Answer» Solution :DRINKING water containing MODERATE level of sulphates is HARMLESS. But excessive concentration (`gt ` 500 ppm) of sulphates in drinking water causes laxative effect.