Exhibit 23.1

CONSENT OF INDEPENDENT AUDITORS

We consent to the incorporation by reference in Registration Statement Nos. 333-293586, 333-224956, and 333-261726 on Form S-3 and Registration Statement Nos. 333-217561, 333-221282, 333-222816, 333-241656, and 333-279758 on Form S-8 of Select Water Solutions, Inc. of our report dated May 28, 2026, relating to the consolidated financial statements of Pilot Water Solutions LLC appearing in this Current Report on Form 8-K dated October 13, 2026.

/s/ Deloitte & Touche LLP

Nashville, Tennessee

October 13, 2026