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Expandable foam question
"stricks760" wrote in message
hlink.net... I wouldn't count on just the foam. It's supposedly something like 95% water-blocking. My experience on a waterfall that cascades through three pools with about 8' of drop substantiates this. In my case, the foam directs MOST of the water over the falls, but not all of it. As far as what WILL work, I have no experience with this, but they make those fake-rock waterfalls waterproof using concrete (textured with a rock-like pad), then painted with waterproofing, then painted. Maybe you could bridge the gap that way. You'd still have a joint between concrete and rock though.You can't jack the flat rock up, and slip liner underneath? I'll probably go with the concrete. There was some white fiberous waterproof concrete that I'd used before that would probably work. As for jacking up the rock, the exposed part is 5 foot in diameter , although only a few inches thick. If that's all, then I could probably jack it up, but I have a feeling that's just the tip of the iceberg. We've got lots of rocks. There used to be a quarry about a mile from here. When I dug my 20'x30' pond, I could only go down 20" because it was one single rock for the entire area. I had to raise the edge another 15" with the excavated dirt. |
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