The tax, exclusive of the levy for the payment of the principal and interest of bonds and any special assessment voted hereunder, and exclusive of the levy for the payment of rentals and all other sums due or payable under any agreement for the construction and leasing or purchasing of any hospital buildings or facilities entered into by the district pursuant to Section 32135 prior to January 1, 1959, shall in no case exceed the rate of twenty cents ($0.20) on each one hundred dollars ($100) of the assessed valuation of all taxable property within the district, but it may be in addition to all other taxes allowed by law to be levied upon such property.
Notwithstanding any other provision of law, if the board of directors of the district determines that the tax limit specified in this section is insufficient to raise enough revenue to maintain the district, the board may call an election pursuant to Section 32241 for the purpose of determining whether a higher maximum tax rate specified by the board in its resolution calling the election shall be established for a period not to exceed five years. If a majority of the voters voting at such election approve the increased tax limit, the board of supervisors shall thereupon levy upon the taxable property of the district within its own county a tax sufficient to maintain the district as provided in this chapter but not to exceed the maximum tax rate approved at the election for the period approved by the voters.