Every such board of county commissioners shall, upon examination of such affidavit or affidavits, or from the oaths of witnesses thereto, if they find that the facts sworn to show the application to be in good faith, and that there are reasonable grounds to believe that unjust rates of compensation are, or are likely to be, charged or demanded for water from such ditch, canal, or conduit, enter an order fixing a day not sooner than ten (10) days thereafter, nor later than twenty (20) days (a special meeting may be called for that purpose), when they will hear all parties interested in such water-works aforesaid, or in procuring water therefrom, for any of the said purposes as well as all documentary or oral evidence or depositions taken according to law, touching said ditch or other water-works aforesaid, and the cost of furnishing water therefrom.