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  #11  
Old 05-24-2011, 11:15 AM
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Quote:
Originally Posted by JDUtah View Post
Thanks guys! Couple more questions...

1- If I do call in a crane and reset it, how would you orient it? (I know the answer may be hard to explain)

2- How would you pad the thing to protect the liner?

3- How much do cranes run in your area?
2. Use 2 or 3 layers of liner underlayment (non-woven geotextile) depending on sharpness of edges on bottom of boulder.

3. Don't see how my cost for a crane will help you. A decent size back-hoe might be able to handle it.

1. Setting it more upright keeping the same horizontal orientation, like pic below. I would try to get the flat area on top of the boulder level and slightly canted toward the street.
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  #12  
Old 05-24-2011, 05:19 PM
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STL Ponds and Waterfalls STL Ponds and Waterfalls is offline
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Like Tadpole said double triple layers of underlayment. With sharp rocks use underlayment under your liner and on top of you liner. You can use anything that won't breakdown. A crane around here is in the $100 per hour or slightly more range. If you have any excavating buddy's ask them if any of thier mini trackhoes can do the work. Either way your looking at a $300-$500 bill I would guess.
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  #13  
Old 05-29-2011, 02:32 AM
CheapScapesNC CheapScapesNC is offline
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I built a pond off a boulder about 5 times that size. Got a piece of flashing, put the liner edge in the flashing, drilled some holes in the rock, and anchored it in and put pond foam between the liner and rock. No leaks, held just fine - even with a fairly large waterfall.
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Old 05-29-2011, 02:32 AM
Mr. Vern Mr. Vern is offline
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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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  #15  
Old 05-29-2011, 01:24 PM
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STL Ponds and Waterfalls STL Ponds and Waterfalls is offline
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Geo fabric will last as long as most will have a pond in my opinion. I've had Geo in streams for 6 years now with no worries to date. I also use scrap liner as well, even crapet, what ever will hold together for the most part.
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Old 05-29-2011, 06:58 PM
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wurkn with amish wurkn with amish is offline
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Keith
just wondering what crapet is :-)
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  #17  
Old 05-29-2011, 10:05 PM
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Keith
just wondering what crapet is :-)
You know when your having one of those day's you just say "oh crapet I'm done".
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  #18  
Old 05-30-2011, 07:31 PM
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where's the like button???!
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  #19  
Old 06-01-2011, 08:25 PM
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JDUtah JDUtah is offline
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lol well crapet... shifting the boulder may be over my head. i dunno, but i would have no idea how many, or where to put the anchors, etc.

With how the landscaping is coming together (the entire front lawn is being terraced) I am considering cementing a wall at the base of the boulder. The ground level right in front of the boulder is going to be 2 feet or so lower than at the boulder. If I install a wall right where the base of the boulder is, do you think I could attach a liner to that somehow? The cement would then be hidden with rocks that are part of the waterfall. I have some ideas just wanna get the pro's input.

Thanks for all the input so far!!
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  #20  
Old 06-01-2011, 08:41 PM
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Liner can be easily attached to concrete using terminal bars and lap cement, but I don't know how you can easily waterproof around the boulder's surface.

The boulder can be lifted using lifting straps.

Will the wall be sturdy enough to support the weight of the boulder without danger of collapsing? Seems that it would need be heavily re-enforced.
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