We use our well for outside use only. We have city water for our house. I've noticed alot of calcium buildup on our shower fixtures(which are new). It also builds up on our water dispenser tray on our fridge. I assume it is calcium? White deposits. Is there a way to filter this out as it comes into the house without spending an arm and a leg, and that doesn't take alot of maintenance? Any suggestions would be much appreciated!