Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the following Registration Statements:

(1) Registration Statement (Form S-4 No. 333-115859) of TETRA Technologies, Inc. and in the related Prospectus, and

(2)  Registration Statement (Form S-8 Nos. 333-40509, 33-41337, 33-35750, 33-76804, 33-76806, 333-04284, 333-09889, 333-61988, 333-84444, 333-76039, 333-114034, 333-115859, 333-126422, 333-133790, 333-142637, 333-149347, 333-149348, and 333-150783) of TETRA Technologies, Inc.;

of our reports dated February 27, 2009, with respect to the consolidated financial statements of TETRA Technologies, Inc. and the effectiveness of internal control over financial reporting of TETRA Technologies, Inc., included in this Annual Report (Form 10-K) for the year ended December 31, 2008.

/s/ERNST & YOUNG LLP

Houston, Texas

February 27, 2009