Pond edging with flagstone

Discussion in 'Pond Construction & Equipment' started by Roger Weich, Jul 1, 2018.

  1. Roger Weich

    Roger Weich

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    I am building pond in my backyard that’s about 3000 gallons approximately and because of space I went with straight walls out of 6x6 treated wood. I covered with a good liner for our area and now am looking to finish the top of the wall with flagstone. It seems very hard to make it look nice with the waterfall foam because of the expansion and I would have to trim excess on every seam. Any ideas to create a nice seal with anything else?
     
    Roger Weich, Jul 1, 2018
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  2. Roger Weich

    Lisak1

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    Welcome @Roger Weich ! You'll get lots of helpful answers from the friendly knowledgable folks on the GPF!

    Some pictures would be very helpful to give us an idea of what you're working with. Plus - we love ponds! And pictures of ponds!
     
    Lisak1, Jul 1, 2018
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  3. Roger Weich

    Roger Weich

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    Thanx lisak1. I basically did this with no knowledge of ponds but hopefully I can learn some cool stuff and see some ponds :)
     

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    Roger Weich, Jul 1, 2018
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  4. Roger Weich

    Lisak1

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    Let's call on an expert rock and stone mason for some advice - I don't think pond foam is the answer at all.

    @RobAmy can you take a look at this and help @Roger Weich with his flagstone edging?
     
    Lisak1, Jul 1, 2018
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  5. Roger Weich

    RobAmy

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    Seeing you in a freezing zone, there is not a lot of options with the design. You could use mortar with a bonding agent but it will most likely give you some issues in freezing conditions being just on top of the rubber. I personally would use a masonry blade on a skill saw and cut the slate tight to each other and then use a chalking like a PL product under the stone. It will offer the best adhesive on the rubber for your zone and for you design. I think the better option would be is use larger stones that can just stay there on their own by their weight if you have access to them.

    BTW you made some nice use of the space fitting the pond by the deck.
     
    Last edited: Jul 1, 2018
    RobAmy, Jul 1, 2018
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  6. Roger Weich

    Roger Weich

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    Thank you Rob I appreciate the help! I am thinking that I will have to cut the flagstone and fit it tight together and maybe add another foot or so out from the existing wall so it blends better. I was hoping that I might use the foam but after using it for the waterfall it’s not going to do what I need and pl works really good so that will most likely be what I go with. I will most likely let it settle until next spring so I can top up the fill dirt around the edges and pack it before adding more stone.
     
    Roger Weich, Jul 1, 2018
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  7. Roger Weich

    Roger Weich

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    I had a few issues setting the pond there because the whole yard is on a hill and it drains everything to the pond and so I actually dig weeping tile under the liner and have it draining to a 12” pipe in the corner that’s 18” below the pond bottom so that it won’t lift the liner in the spring... hopefully
     

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    Roger Weich, Jul 1, 2018
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  8. Roger Weich

    Lisak1

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    @Roger Weich - sounds like you've got a plan! I agree with adding more rock to the perimeter to add both stability and a more finished look. Your pond is lovely!
     
    Lisak1, Jul 1, 2018
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  9. Roger Weich

    Roger Weich

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    Thank you I hope that everything goes smoothly and works but as I have found the unexpected comes up quite a lot especially as I have never done anything like this before. Quite a learning curve lol
     
    Roger Weich, Jul 1, 2018
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  10. Roger Weich

    Lisak1

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    Ah... that it is!
     
    Lisak1, Jul 1, 2018
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  11. Roger Weich

    bagsmom

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    What a great pond!!!!! Do you need to stick the edging stone down firmly for safety? Are you thinking people will want to stand right on the edge? If not -- and viewing will mostly be from the deck - do you need to stick it down? If not, I think I would add a few flat rocks just outside your edge - to kind of break up the ring around the pond, then maybe fill in the gaps with pea gravel. Then you could plant some creeping greenery that would help fill in also. Just an idea. But you might have a reason for wanting to stick it down! Your pond is really great looking and it is hard to imagine you are a beginner. Just looks fantastic!
     
    bagsmom, Jul 2, 2018
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  12. Roger Weich

    Nevermore44

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    That's a great spot for a pond. I like that waterfall.

    Just as an option to finish the edges... did you ever think about using wood on part of it?

    I have my pond against my deck/pergola ... which has a clean cut
    angular look... but the rest of the yard is creek rock natural
    stone and perennial flower beds. So edging part of your pond with wood might make a nice transition.

    Since you have the 6x6 structure... you can essentially just cap a portion of
    the wall with 2x8 or 2x10 wood and line it up with the angles of the deck. PS… I
    added a 2x2 piece on the overhang to hide my liner as well.

    Then at the more organic rounded areas of the edge... go to your flag stone.
    Looking at your materials... if you can get your hands on much larger
    pieces... that would help immensely. One… they can overhang the water a
    bit... cover the liner.. and second.. you can avoid the whole balance
    thing. If you can’t get bigger pieces, then maybe you could take the stone from where you
    put wood... and make a second offset tier of stone. This would cover up the joints of the first tier foam/glue/etc.

    Here is my ruff photoshop job on your pictures… and then a side view of the wooden cap.
     

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    Nevermore44, Jul 2, 2018
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  13. Roger Weich

    CMP

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    I got so excited when I saw your flagstone, I have the same stuff! And lots of it. Came with the house. I've just finished digging my hole and am trying to figure out how to edge it with small concrete blocks as coping stones, and then those pink flagstones on top. My blocks are 7 inches long, 5 inches wide and 2.5 inches deep. I plan to use more than one layer of pink flagstone as suggested by @Nevermore44 Did you use coping stones?
     
    CMP, Aug 12, 2018
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  14. Roger Weich

    j.w I Love my Goldies

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    j.w, Aug 12, 2018
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