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  1. #11
    Super Member
    Join Date
    Apr 2000
    Posts
    5,666
    Location
    Cedartown, Ga and N. Ga mountains
    Tractor
    1998 Kubota B21, 2005 Kubota L39

    Default Re: Big Hole

    You might also do some checking on this site. Pond Boss Magazine: Welcome There is a pretty good crowd there and some of them are pond builders.

    MarkV

  2. #12
    Platinum Member
    Join Date
    Apr 2012
    Posts
    743
    Location
    pa
    Tractor
    kubota 7040sud

    Default Re: Big Hole

    i have a clay dam its 200 feet long 70 foot wide 8 to 12 foot deep the straight side holds the water in the breast that a 90 degree wall with big rock some weight 2 t0 4 ton no problem with it since 1984 when it was finished clay ground will keep the water brown it was dug with a dozer i would use your hoe to oull the dirt away from the walls that the easist route

  3. #13
    New Member
    Join Date
    Sep 2012
    Posts
    18
    Location
    Murfreesboro, AR
    Tractor
    Ford 550, 1945 Farmall Cub, 1949 Farmall Cub

    Default Re: Big Hole

    Thanks. I too once dove deep enough in a pond to hit the first thermal layer. That's usually at about 12 to 15 ft. In a larger lake, a second layer usually starts at about 20 to 25 ft. The reason I want to go so deep is to get enough volume since it will be an unside down pyramid and I am limited on the surface size. I hoping for 30 feet from ground level since the water level will probably be 5 to 8 ft down. The area is almost flat so I won't have a levy. I want to use an open system where I extract water from the bottom and return it midway or top according to the return temp. I want to run the water through a sand filter, my heating/cooling system and then through a large aquerium before returning it to the pond. My house will also have solar hot water heating coils on the Southern facing roof. A Darious windmill and solar panels will help generate the electricity I will need to run the pumps. Most of this I will build myself, if I live long enough! At least I can dream about about the completed project. My pond is about 10 foot deep and a hundred or so feet wide now. At least a start, right? I appreciate everyone's advice and redcommendations.

  4. #14
    Super Member crazyal's Avatar
    Join Date
    Dec 2003
    Posts
    5,930
    Location
    Northern Vermont

    Default Re: Big Hole

    One thing you can do is put large crushed rock on the steeper slopes to help prevent the clay from migrating to the bottom of the pond. Around here we call it rip rap. As far as using the backhoe goes, do you have teeth on your front bucket or is the edge flat steel? If you don't have teeth I would look into a tooth bar for it. The backhoe will work but it'll slow you down some. I would say try the backhoe.
    Kubota L4240,Case 580K backhoe, Case 450 Dozer

  5. #15
    Super Star Member
    Join Date
    Jul 2011
    Posts
    14,436
    Location
    Yanceyville, North Carolina
    Tractor
    Kubota L4400

    Default Re: Big Hole

    The other TBN members have offered great advice. I would like to add this important advice. Please be careful. Best wishes.
    The PUPIL who does not surpass his Master, fails his Master.

  6. #16
    Elite Member
    Join Date
    Apr 2009
    Posts
    3,202
    Location
    adirondacks

    Default Re: Big Hole

    The rule of thumb is 1foot down for every 3feet out. You also only need to be 12 feet down for geothermo. 35' deep is a long way down and a major amount of spoils to move, how deep are you now? As some one wrote you may work right through your clay and into something else that may not hold water especially if trying to go that deep. But if you do happen to do that you could all ways bring back a layer of clay to coat the pond.

  7. #17
    Elite Member Redneck in training's Avatar
    Join Date
    Nov 2008
    Posts
    2,789
    Location
    South Central Iowa
    Tractor
    TYM 330 HST with FEL

    Default Re: Big Hole

    Quote Originally Posted by Diamondcutter View Post
    I have a Ford 550 backhoe and I am trying to dig my pond down as deep as I can get it...hopefully 30 or 35 foot. I want to keep the walls as steep as I can with one pathway out (perhaps 200 feet or more long). So far I have been using the front end loader to dig. Would it be better to use the back hoe to pull down dirt from the walls before scooping it up? I can usually get a full load with one or two strikes but the ground is heavy clay with large gravel and it is getting harder. I want the pond deep to give me stable temperature water to use for geothermal system in my future house. Any advise would be appreciated.
    I worked in Arkansas several years back and remember there was snow on the ground. Therefore I doubt the water temperature in the winter will be 60-70 deg regardless of the depth of the pond. The geothermal will actually work well even in a small puddle but the problem is it will affect the life in there. The temperature will go up in the summer and down in the winter. Therefore there is a rule of thumb about sizing the pond versus the size of the system. I would, in general, advise against open system. It requires maintenance. The marginal gain in efficiency is not worth the complexity and the trouble IMHO.
    You also mentioned wind mill. If you look at current cost of solar panels there is not a windmill that can beat the cost/W of PV even when you make the windmill by yourself. Panels are about $1 to 1.2/W while complete DIY PV system will run in about $2,10 - 2.25/W.
    If I would build my house today I would install split heat pump units to every room and power it with solar system. My cost analysis is that it will cost just about as much as geothermal while energy cost will be pretty much close to zero.
    1 ton split unit is about 2200 DIY or 3500 installed. Three bedroom house needs four or five of those.
    20kW DIY solar system will cost about 30000 after government tax incentive.
    The total cost is more than geothermal system but with no energy cost.

  8. #18
    New Member
    Join Date
    Sep 2012
    Posts
    18
    Location
    Murfreesboro, AR
    Tractor
    Ford 550, 1945 Farmall Cub, 1949 Farmall Cub

    Default Re: Big Hole

    Thanks. First hard figures I have looked at. I do plan to do about everything myself. I'm retired and mostly want something to keep me active.

  9. #19
    Gold Member
    Join Date
    Jun 2008
    Posts
    385

    Default Re: Big Hole

    Quote Originally Posted by case245 View Post
    i have a clay dam its 200 feet long 70 foot wide 8 to 12 foot deep the straight side holds the water in the breast that a 90 degree wall with big rock some weight 2 t0 4 ton no problem with it since 1984 when it was finished clay ground will keep the water brown it was dug with a dozer i would use your hoe to oull the dirt away from the walls that the easist route
    G'day Case245. You may not have noticed but your "Shift" & "." key are not working.

    Weedpharma
    There are 10 types of people who understand binary, those who do and those who don't.

  10. #20
    Elite Member Redneck in training's Avatar
    Join Date
    Nov 2008
    Posts
    2,789
    Location
    South Central Iowa
    Tractor
    TYM 330 HST with FEL

    Default Re: Big Hole

    Quote Originally Posted by Diamondcutter View Post
    Thanks. First hard figures I have looked at. I do plan to do about everything myself. I'm retired and mostly want something to keep me active.
    Look at in example Halcion split units. They are super quiet and very efficient. They work quite well in Iowa and will work much better in your climate. If you don't know how to install them hire somebody to install one, then buy vacuum pump for $100 and install the rest by yourself. I paid for installation and I was not happy with quality of work. I plan on installing one more unit in my shop and I will do it by myself.

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