Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement on Form S-8 pertaining to the EWT Holdings I Corp. Stock Option Plan of our reports dated November 25, 2019, with respect to the consolidated financial statements and schedule of Evoqua Water Technologies Corp. and the effectiveness of internal control over financial reporting of Evoqua Water Technologies Corp. included in its Annual Report (Form 10-K) for the year ended September 30, 2019, filed with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

Pittsburgh, Pennsylvania

November 26, 2019