I don't know much about it other than what I've read. The term "slurry trench" caught my attention when I was surfing for dam seepage solutions. Seemed like a possible solution to my problem at the time but I went with the DB-100 instead and haven't done any more research on it and never called to see what the costs were.

From what I understand the benefits would be a stable trench while excavating and the bentonite could be applied directly as a core. Some of the slurry would seep into the dam as the trench is being dug and form a barrier. Similar to grouting but on a larger scale.