Bog building

addy1

water gardener / gold fish and shubunkins
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Enjoy! You will find that the pea gravel will settle once it is running. I added a bunch of bags after the fact. I also did not rinse it. I had way to much to rinse, and that year we were in a sort of drought. Did not want to wipe out our well. The fine dust was nicely removed by the bog.

You will also find out that the surface of the bog, over the years, will start to get a layer of muck as it runs. I just ignore it. At one time I was thinking of using a vac to remove it and never got around to pass the thinking stage.

One thing I would suggest, is make the wall of your bog higher than you think it should be. I added around 2 inches to the wall after the build. Always leave your excess liner, fold under, bury but do not cut.

I use just one external pump. Hauled it from my Arizona pond. Per my soft guess work on volume of water in my ponds, I circulate the water about once every hour and a half.
 
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Going to go with the preformed pond liner idea for the sump and a solid wall with an overspill for the bog.
I think @addy1 covered most of your questions, but I did want to add that I would never opt for a preformed over an EPDM liner. The amount of work it takes to get one to be level and stay level just wouldn't be worth it to me. Plus over time they are prone to cracking, especially if you have any heaving or shifting in your ground which I'm assuming you would in 6B.

Just thought I would throw that out there. Maybe you have a reason for using a preformed and I missed it - if so, just ignore me!
 
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One idea I was thinking of was to have a top pond flow down into a lower bog. Have a wall in the lower bog to section it off to collect the water and have pipes from the bottom of it feeding into the bottom of the bog. Then have a skimmer at the other end with a pump to return the water to the pond above. Might still do this idea once I start my build.
 
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I think @addy1 covered most of your questions, but I did want to add that I would never opt for a preformed over an EPDM liner. The amount of work it takes to get one to be level and stay level just wouldn't be worth it to me. Plus over time they are prone to cracking, especially if you have any heaving or shifting in your ground which I'm assuming you would in 6B.

Just thought I would throw that out there. Maybe you have a reason for using a preformed and I missed it - if so, just ignore me!
Thanks for the suggestion Lisa - I'm not overly worried about the pre-formed pond shifting or cracking - we are in a very sheltered site and I don't think I have ever seen serious freezing of the ground to any depth in the 35 years we have been here (I think we are in zone 9, not 6B - perhaps I filled my profile incorrectly). Also - the preformed pond will actually be sitting in the corner of the bog and should be very easy to replace if there is any problem. But thanks anyway for the advice :)
 
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