Welcome to the forum, OK Prepper.

Any business owner should be willing to provide a list of his customers, and I agree with Scott that it's wise to invest some time and ask them about their pond performance. If the contractor is unwilling to provide past customer information, or if these customers all are dealing with severely leaking ponds, then I'd keep looking.

Mike Otto, one of the owners of Pond Boss, works in Northern Texas and Southern Oklahoma. You couldn't dream of a better engineer and quality human being. I strongly encourage you or your brother to contact him - tell him we sent you.

1-800-882-DIRT (3478)
or
940-665-2258

mikeotto@ottosdirtservice.com

Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

[Linked Image from i1261.photobucket.com]