I used WS water product on one ravine and Envirotex 2-part bar top polyester on the other. The Envirotext produces a dynamite finish. Hard as nails and easy to keep clean. The W-S produce has more surface features which work better for moving water. Any bubbles that form with the Envirotex are removed by blowing a hot air gun over the surface. In the future, all my water will be Envirotex. I did use the W-S water feature product to make the wake lines around the Loch Ness Monster living there.
This was W-S "real water" and Water effects for the flow lines around the bridge pier.
This was Envirotex plus some minor flow lines leading off the sea monster. You can catch the reflection off the surface. The faux stone wall on the cliff top is where my wife lost her cell phone in October of '13 at a ravine in Clifty State Park in Madison, IN. That phone is now adhered to the Monster's back (the side away from the camera). The grandkids sculpted "Cecil".
You have to be careful about damming the ends before pouring the resin. I thought I was and had a big mess where it escaped. That was with the expensive W-S product. I was more careful with the resin. If I were to do it again, I'd engineer the dams better.
