Hi everyone,i have been having great success rooting roses in the greenhouse under the misters in previous years,only problem is now our water has become extremely hard,to the point that it looks brown in a pitcher,hence my cuttings that I was rooting have a brown stain on the leaves,and the sand gets a dark brown,then does not drain properly.I have a soft water line near the greenhouse,can I use that,or I also have a line from a nearby creek for watering the flowers,am I better to use that water instead?

Thanks for any help,I would like to take several cuttings,but would like to fix the water situation first.