Question

Permanent hardness of water can be removed by boiling or not

Answer 1

Boiling and adding lime are two of the older methods used to soften water containing temporary hardness. Permanent hardness is simply the hardnessthat is not removed by boiling. If your water is gypseous — that is it has passed through gypsum in the ground — it will contain calcium and sulfate.
may it help u mate
if so follow me