All district indebtedness, not otherwise provided for, which has not been or will not be paid on substantially a cash basis, shall be paid from the suspense fund and it shall be the duty of the district board to make ample provision for the requirements of this fund by the levy of assessments or by the use of other revenues of the district, authorized by law to be used for this purpose.
[ 1937 c 72 § 181; RRS § 9663E-181. Formerly RCW 86.08.685.]