I've just read through this entire thread. Very interesting. Initially I was looking at Damit but now I'm sold on the 2 part polymer in case I need it.
I have a 1 acre lot on a slope overlooking the Arkansas river in Broken Arrow, OK. A lot of sandy soil to say the least. 1/4 of my property is a deep and steep 'canyon' about 30ft wide with steep walls on either side. I'm having a contractor come in a week to excavate about a 100ft x 30ft strip through that canyon, using the best material he can find there to berm up the end. He'll install 2 culvert pipes in the dam as overflow. I have 10 drains from various ground catch basins and downspouts that collect at this one area, water from much of my neighbors' lots and my lot. So I get a lot of water drainage that moves through there. Instead of watching the canyon get deeper and wider, I thought I'd build a little pond.
Can you get me started on a plan for what to watch for and when to possibly act on treating with the polymer?
