A person consuming metro water suddenly states consuming well water due to shortage of water supply from municipality . What effect was felt by him ? What could be the cause ?

A person consuming metro water suddenly states consuming well water du

1.	A person consuming metro water suddenly states consuming well water due to shortage of water supply from municipality . What effect was felt by him ? What could be the cause ?
Answer» SOLUTION :He felt laxative effect. The laxative effect is observed when the sulphates present in water have concentration GREATER than 500ppm. OTHERWISE at moderate LEVELS it is harmless.