Purchased 5/09 to help stop puddling in rear of home. The puddling has gone down except during heavy rain but is much less than before. Instructions are a little vague, had to call technical support who were very helpful. Overall I recommend the product. Good price compared to others.
This seems to be working fine. The odors are gone and the gurgling has disappeared. I have been using Septi-Blast for 2 months.