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  1. #11
    Gold Member Localmotion's Avatar
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    Default Re: Best way to line a pond?

    Quote Originally Posted by Gary Fowler View Post
    You might try mixing cement with the existing sand to form a dry mixture and then pack it down like we use for road beds in some areas. It would take a lot of cement but would be cheaper than concrete. If you have a tiller, you could mix the cement and sand with that. Mix ratio would be something like 100 to 200 pounds of cement per cubic yard of sand. It might still be slightly porous but should set up similar to cement grout.
    I really like the idea Gary... Have you tried it to make a pond, or is it just theory?

    If anybody else has tried this (or similar), please let me know how you got on....

    Also please can someone explain what Bentonite is??? I've never heard of it before - I live a sheltered life!!!
    Fiat-NH 50-86vi, Siromer 204S; Ebro 44; Case CK28; Cat 302.5; Nissan L35.09

  2. #12
    Advertiser sweettractors's Avatar
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    Central Kentucky
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    JD 6403 CHA-JD 3130 CHA

    Default Re: Best way to line a pond?

    I have a 50 X 50 small decorative pond that I have tried Bentonite on and it did not work and cleaned it out with the dozer again with no luck and finally bought a $400 light liner and guess what, the deer poked holes in that. Today, I have a pond with no water. If I could find the leaky area I could fix it. I like the cement mixed in sand idea. Ken Sweet
    http://www.sweetfarms.com/

    Sweet Farm Equipment LLC (Internet Sales, Shipping All States)
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    The Northeast shipping corridor is a little more expensive.

  3. #13
    Super Star Member EddieWalker's Avatar
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    Tyler, Texas
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    Several, all used and abused.

    Default Re: Best way to line a pond?

    There are only two things you need to know about concrete. It will get hard, and it will crack. While swimming pools are good at dealing with this, it's not something that happens by accident, and the bigger you make the pool, the more effort it takes to make sure it won't crack on you. Even then, it happens. You must REALLY want a pond!!!!

    Eddie

  4. #14
    Super Member
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    Wise county Texas
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    Kioti DK 35 now

    Default Re: Best way to line a pond?

    To bad you cant use the Marble for the bottom, then you only have the walls to deal with. Even with small cracks in the Marble, that would be better than sand.

    If you do go with a line for whatever reason, spend the $$ and get a 45mil.

    You may be able to get more clay fill from any excavations going on around you to. I'd take clay over most anything.
    Dennis


    "Winter 2013 a majority of the country is setting new cold records, Colorado is setting new record HIGH's"

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  5. #15
    Gold Member Localmotion's Avatar
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    New Holland 50-86 / Siromer 204S / Case CK-28 / Cat 302.5 / Nissan L35.09

    Default Re: Best way to line a pond?

    Quote Originally Posted by EddieWalker View Post
    You must REALLY want a pond!!!!

    Eddie
    Yup - coming from the UK and living in an area with no natural water courses, I am desperate to have a little oasis

    Also it'll give our ducks somewhere decent to swim - they're not impressed with the old baths they currently have !

    I take your point with the concrete though - although would still like to hear if anybody has actually tried it.

    Also I will try a dug out tomorrow and see how well the clay holds water.. it maybe that we can use a combination of clay & liner (belts & braces) approach?
    Fiat-NH 50-86vi, Siromer 204S; Ebro 44; Case CK28; Cat 302.5; Nissan L35.09

  6. #16
    Member
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    Brisbane North
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    Jd 2305,Antonio Carraro trx 9400, JD 10 TLB

    Default Re: Best way to line a pond?

    I'm in the same situation. Currently Cleaning up a small dam/pond. Removing all the trees that have grown up around it.

    http://www.dpi.nsw.gov.au/__data/***...aking-dams.pdf

    This document may be of use to you. Lists various methods of sealing them. Pro's and Cons.

    Cheers
    Byron
    2007: JD2305 Fel, 62 MMM, BB.
    2008: Antonio Carraro trx 9400, Meaat Mulcher, PA 41 Boom Mower.
    2011: JD 110 TLB

  7. #17
    Veteran Member
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    Trivoli, IL
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    SSTT (Sideways Snake Tain Tractor) and STB (sideways train box) tractor, dirt harvester

    Default Re: Best way to line a pond?

    Pond Boss Magazine: Welcome and Koiphen.com would be other resources you can use. there both like TBN but are more geared towards ponds/lakes. vs tractors.

    there are a variety of rubber like liners out there. from EPDM to PVC to (list is rather long) some are cheaper, while others are very costly. other examples of laying down a geo textile fabric and then having a company come in and spray down a rubber like liner onto the geo fabric. to create a custom shell.

    remember there are many sewage ponds, and chemical ponds out there. besides backyard liner ponds, mud ponds, and lakes. that the various liners come from.

    ===========
    most mud bottom ponds rely on "clay" or rather bentitite clay. but if you are looking at this. i would highly suggest to get a soil engineer involved. so they can take samples, and tell you what you need to add and amount of it. they might suggest different things.

    also contact your local "fisheries" / "hatcheries" that breed fish for local lakes and ponds.

    ponds have been around for years. meaning most libraries you can find old farm books, that give detailed info on how to build a pond. that still hold for most part true today. books generally also go into details about building run off areas and like to help trap silt before it makes it into the pond/lake.
    Ryan

  8. #18
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    Default Re: Best way to line a pond?


  9. #19
    Gold Member Localmotion's Avatar
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    Default Re: Best way to line a pond?

    Thanks everyone for their help.... especially Bruce for his link about Bentonite

    I think we may be very very lucky - often when digging holes for customer swimming pools & depositos we hit a grey, almost shale like seam about 1-1.5 metres down. We've even hit it here on our own land, just before we get to the sand...

    Having followed Bruces link and done a bit more research I think it may be Bentonite. Having looked at images of it in it's raw state, it looks identical, and checking the geological survey it would appear that our area of Spain does have deposits...

    Also it seems to react in the same way - we had a customer a year or so back who asked us to spread the "shale" we had dug out of his pool to make a hard standing area - but after the first rain on it he wanted us back to take it up again as his car got stuck upto the axels in it! When wet this rock like substance just turns to jelly!!!

    Does it sound like Bentonite to you?

    Has anybody used Benotonite to line a pond?

    Does anybody know the best way to prepare & mix raw bentonite (straight from the ground) to use as a pond liner?

    Thanks again in advance for all your help
    Fiat-NH 50-86vi, Siromer 204S; Ebro 44; Case CK28; Cat 302.5; Nissan L35.09

  10. #20
    Gold Member Localmotion's Avatar
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    Default Re: Best way to line a pond?

    Update:

    Have just done a couple of bucket tests using what we think maybe Bentonite and also the light clay top layer that we have here....


    2" layer of the light clay topsoil drained 5L in under 2 minutes, most of which was then present in the bootom bucket (so not much absorbtion).

    Tried again, this time paddling 2" of the light clay first, but still drained after 30 minutes Have not bothered to try a scrape, as really don't now think this is an option. We do have some areas where the clay is a bit heavier, but definately not enough for this project.


    2" layer of the Bentonite like material, crushed up drained only 3L of the 5L before stopping. Interestingly of the 3L drained, over half was absorbed and not present in the bottom bucket

    With a 2" paddled layer of the Bentonite, nothing had drained after 30 minutes, and the top bucket was still full to the brim I have left the test set up and will check it later to see how much has drained, but hoping we may be on the right lines here...


    Assuming the bucket test still looks good later, our next trial will be to dig a small pool (probably about a cubic metre) and we'll try lining it to see how it works...

    If anybody has any tips on working Bentonite from it's raw, rock like state right through to applying to a new pond, please let me know...
    Fiat-NH 50-86vi, Siromer 204S; Ebro 44; Case CK28; Cat 302.5; Nissan L35.09

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