Small Water Filter to Remove Calcium

[Azure]

So our water at work is pretty clean from the bad stuff, but it does tend to have a lot of calcium. Lots of the small filters like this...

http://www.amazon.com/exec/obidos/AS...=ATVPDKIKX0DER

Seem to be just for removing chlorine and other bad stuff, but I don't see anything about removing calcium. We currently use a unit like this for our coffee machine, and helps a bit but all the valves on the inside tend to still clog up after a month or so due to the calcium buildup.

Is there something similar to the above that I could purchase to just remove the calcium? Thanks.

[oilyfan]

Calgary water is hard water, which means it has calcium and other minerals in it that have not been removed by the city. Only way to remove them at hoe, or at the office, is a water sofetner. Not sure if they make small water softeners because they require a lot of salt to operate.

[Azure]

That is what I figured. Most of the small water filters just remove bad stuff and not necessarily calcium and other minerals.