As a monument conservator for over fifteen years, I have used many monument cleaners over the years. However, since 2007 I have exclusively used D/2 Biological Solution in my monument restoration business, Texas Cemetery Restoration LLC. Many people have asked me where they can purchase D/2 Biological Solution and until now it was not generally available to individuals or small cemeteries. I am pleased to now make D/2 Biological Solutions available for purchase in 5 gallon or 1 gallon sizes. Please don’t hesitate to reach out to me by phone or email with any questions.