Ritesh Oedayrajsingh Varma@sinbad oh neat, never heard of that. We got a water softener (is that the right word?) installed in the new house, which removes calcium. I’ve been loving it, but there are no cartridges, it’s just hooked up directly to the water mains and filters out the calcium through a reaction with resin (IIRC). Only need to replenish a salt supply evert ~6 months or so which is dirt cheap. Looks like the cartridge thing does a lot more than just calcium though.
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