(1) The treasurer shall: Pay out no money, save upon the order of the board and upon a warrant signed by the chairman of the board;
(2) Be allowed a commission not exceeding one percent (1%) upon all sums lawfully paid out, to be fixed by the board; and
(3) Give special bond in a sum to be fixed by the county court as treasurer of each drainage district.
(4) Every warrant shall state upon its face to whom, the amount, and the purpose for which it is issued.
(5) All warrants shall be dated and numbered consecutively. A record shall be kept by the board of the number and amount of each warrant.
(6) No warrant shall be paid unless there is in the treasury funds enough to pay all outstanding warrants bearing a lower number.
(7) No warrant shall be increased by reason of any depreciation in the market value thereof, nor shall any contract or warrant be made payable or paid in anything but currency.