If the court, on hearing the matter, thinks it proper, it shall issue its order appointing five commissioners, who shall be freeholders, any three of whom may act, who shall, on being served with a copy of the order, go upon the land, and after being duly sworn, ascertain and report what damages, if any, may be sustained by the party or parties through whose lands the drain is to be run; but the commissioners, before proceeding to execute the order, shall give to the parties interested, and to the tenants in possession, at least ten days’ notice of the time appointed by them for the execution of the same in the manner prescribed by § 21-428.