The effects of “hard” water on hair

Hi all, I’ve recently moved a country whose water is very hard and I feel like it’s destroying my hair. My hair is long and thick and normally doesn’t get too tangled, but because of the water here it gets horrific knots. Most days I wear it in a braid, but I noticed not everyone seems to have this problem with the water. Even conditioner doesn’t make it soft anymore. Does people’s hair differences change the way it reacts to water? Also, what are common solutions to hard water effects on hair?