Rick,
I'd certainly like to hear of anyone who has tried this and found it to work. Yes, I'm very skeptical, but if indeed it did work, as you say, it would certainly be a good thing.
I can buy 25 tons of ag lime including the cost of spreading for about $700...and I usually do buy that much every other year...maybe the stuff you guys get is different, but this stuff, even 25 tons, I don't believe would stop any leak.
EWEST,
On one pond that I completely contracted out for, I had a 1 year warranty (hand shake) on the integrity of the dam and against leaks. I have no doubt that warranty would have been honored if necessary. Maybe that is unique to my area, but for sure, I would certainly ask for that in advance...having a leak isn't necessarily indicative of a poor contractor, in fact I bet it has happened to the best of them...it happened to me, but then I'm not in that class, let alone ever even made the school.
