We live in the country and have our own well , it has a lot of calcium and other minerals in it , we have no cold water coming through to our kitchen or bathroom but we have hot water. We believe that the calcium or other minerals have clogged the line is there any way to unblock them.
Thank you
cooky49

Not really, if you take one of the pipe apart it should be obvoius, I have seen pipes almost 1/2 full restricting flow. The issue here is, that the cold water is running at least as far as the hot water heater, so the blockage is somewhere after the split where the cold water goes to the heater. It would be at a shut off valuve where it is restricted to start with.

If the pipes are really clogged bad, I would say to replace them, And use a filter system in your intake.