Don’t let that stop you getting the ultimate shower experience! My parents also have water with very high calcium at their house and I don’t think they had any problems with the faucet in the past 15 years.

I live in a rented place, they were doing repairs to the heating systems, several times we had brown water coming out the tap. I bet they installed the cheapest option, plus the debris in the water, this fucked it.

Just invest in a good thermostatic faucet and never look back !