pastorjosh said:when my mold inhibitor was back ordered I made a few cultures with vinegar. Personally I hate the smell of vinegar. My cultures also seemed to dry out with the vinegar. And this is also the only time I have ever got mold (I did put the culture in front of the AC too). The cheapest place I have found the mold inhibitor was: http://www.wholesalenaturalbodycare.com ... abens.html I used this particular mold inhib for about 2-3 months and have consistently fed my toilet with excess flies.