Describe one method of removal of permanent hardness of water?

Question: Describe one method of removal of permanent hardness of water?

I can provide a hypothetical example - Recently, my friend asked to borrow my laptop as their own was being repaired. I trusted them and lent it to them for a few days. They took good care of it and returned it to me in the same condition as they received it. It felt good to help out a friend in need and strengthen our bond of trust.

 

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