There was a lot of discussion last year on DB-100 and DB-110 but I am not finding much on DB-200. As some of you may have seen in the thread on my pond I have a leak and am starting to plan as to how to fix it. The first recommendation I get is to remove the trees, roots, etc that I left on the north shore. The north shore was untouched during construction so it is a natural ravine and no compaction was done in this area. The pond appears to level out right where the compaction stops. So the first step this year will be to remove the trees/roots/etc on the north shore and create a 3:1 slope. This will increase the pond size from roughtly 1/2 acre to 3/4 acre. Since I will be draining the pond to accomplish this I was thinking about adding bentonite as a extra level to insure the pond will hold water. But the cost of bentonite has me second thinking this. Then I remembered about the DB-200 product. The cost of DB-200 is about 1/5 to 1/10 of that of bentointe. This has me thinking about using it but would like to hear of some experiences with this product before spending the $1K+.