Exhibit 32.2

Certification of
Chief Financial Officer
under Section 906 of the
Sarbanes Oxley Act of 2002, 18 U.S.C. § 1350

In connection with the quarterly report of Select Water Solutions, Inc. (the “Company”), as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Chris George, Chief Financial Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date:    July 31, 2024
	/s/ Chris George
	Chris George
	Executive Vice President and Chief Financial Officer (Principal Financial Officer)