Any entered but unpatented lands not subject to the reclamation Act of June seventeenth, nineteen hundred and two (Thirty-second Statutes, page three hundred and eighty-eight), sold in the manner and for the purposes mentioned in this chapter may be patented to the purchaser thereof or his assignee at any time after the expiration of the period of redemption allowed by law under which it may have been sold (no redemption having been made) upon the payment to the officer designated by the Secretary of the Interior of the local land office of the minimum price of $1.25 per acre, or such other price as may be fixed by law for such lands, together with the usual fees and commissions charged in entries of like lands under the homestead laws, and upon a satisfactory showing that the irrigation works have been constructed and that water of the district is available for such land; but the purchaser or his assignee shall, at the time of application for patent, have the qualification of a homestead entryman or desert-land entryman, and not more than one hundred and sixty acres of said land shall be patented to any one purchaser under the provisions of this chapter.

These limitations shall not apply to sales to irrigation districts, but shall apply to purchasers from such irrigation districts of such land bid in by said district.

Unless the purchaser or his assignee of such lands shall, within ninety days after the time for redemption has expired, pay to the proper officer designated by the Secretary of the Interior all fees and commissions and the purchase price to which the United States shall be entitled as provided for in this chapter, any person having the qualification of a homestead entryman or a desert-land entryman may pay to the proper officer designated by the Secretary of the Interior for not more than one hundred and sixty acres of said lands, for which payment has not been made, the unpaid purchase price, fees, and commissions to which the United States may be entitled; and upon satisfactory proof that he has paid to the purchaser at the tax sale, or his assignee or to the proper officer of the district for such purchaser or for the district, as the case may be, the sum for which the land was sold at sale for irrigation-district charges or bid in by the district at such sale, and in addition thereto the interest and penalties on the amount bid at the rate allowed by law, shall be subrogated to the rights of such purchaser to receive patent for said land.

In any case where any tract of entered land lying within such approved irrigation district shall become vacant by relinquishment or cancellation for any cause, any subsequent applicant therefor shall be required, in addition to the qualifications and requirements otherwise provided, to furnish satisfactory proof by certificate from the proper district or county officer that he has paid all charges then due to the district upon said land and also has paid to the proper district or county officer for the holder or holders of any tax certificates, delinquency certificates, or other proper evidence of purchase at tax sale the amount for which the said land was sold at tax sale, together with the interest and penalties thereon provided by law.