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Old 05-29-2011, 03:32 AM
Mr. Vern Mr. Vern is offline
LawnSite Senior Member
 
Join Date: Dec 2005
Location: Northern California
Posts: 632
I would use geotextile under the liner, and liner scraps under the rock 2-3 layers thick. I don't like to put geo fab in the stream as I am not sure how long it will last fully submerged and I have found that multiple layers of 45mil is extremely difficult to puncture and scraps are readily available for rock pads.
That rock looks to be basalt, if so I doubt any normal skidsteer or backhoe will be able to lift it. In my area a crane is $200/hr 2 hour min. Very cool rock though.
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