Bog building


addy1

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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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Hi Addy - Sorry to be so long posting an update - I'm still having troub;e with the forum allowing me to post. Hopefully, it's in a good mood today!

Here are some images of the current state of my project - the pond is filled, the water is moving :)

118669
118669
 

addy1

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Very nice! great on getting the water running!
 
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Here's a shot from the other end. Hopefully, the exposed bits of black liner will be covered eventually by plants either growing up or trailing down :)

118670
 
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No plants in the bog filter as yet - we're currently having a run of freezing nights here - ice on both the main pond and the mini-pond/sump

As you see, water is currently being delivered to the mini pond via a pipe. Mext stage is to build the stream the will discharge into the mini pond.
118671
 

addy1

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The plants will hide a lot. During winter I see a bit of liner in my bog as soon as the plants start to grow.............gone
 
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Has anybody planted "ransoms" (wild garlic / Allium Ursinum ) in their bog filter? It grew all around the boggt edge of our old pond and it's so pretty in early summer (and you can eat it) - I popped a couple into the bog filter last week and it's looking really happy - just a bit worried it will try to take over!
 

addy1

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I have not tried it, everything grows well in a bog if it likes the wet and does take over, Mine is a "wild" bog if it grows it gets to grow and gets over grown. Occasionally I go in and groom some of the plants.
 
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Wow! So much to read!
I have some questions and ideas...

It seems to be the consensus here that the slits on the manifold pipe should be facing down. Most of the articles elsewhere online say they should be facing up. Now I tend to trust everyone here and will probably go that route. But just wondering why the different views? I'm thinking facing down the gravel will less likely tend to clog the slits. Is that the main reason?

Another thought on the manifold construction:
I see everyone using tee fittings creating branches to get full coverage. I was thinking of just having one continuous pipe turning back and forth (two 90 bends at each end) so that I know there will be even distribution of the water. Any thoughts or concerns on this idea?
Should the manifold be level? Or would that matter at all since there will be considerable force from the pump anyway?

And a question about the liner:
Do I pitch (the bottom) of the liner toward the pond? Or have it level and just rely on the lower wall section for the water to flow out?
 
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Sorry...another question...I might be over thinking this stuff!
I was thinking of keeping most of my manifold piping toward the side of the bog opposite of the pond. Thinking that if it was too close to the pond, the water would be only flowing through a limited amount of gravel. I think I would want the water to seep through as much gravel as possible.
Am I over thinking? Getting too technical?
 

addy1

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I'm thinking facing down the gravel will less likely tend to clog the slits. Is that the main reason?
I put mine down to keep the pea gravel from clogging the slits, that was how I thought it out. Also put a extra piece of liner under the pipes to keep the water from pounding constantly on the real liner.
I see everyone using tee fittings creating branches to get full coverage.
mine is just two 26 foot lines of 2 inch pvc pipe joined by a T near the input from the pump.

Capture.JPG


Do I pitch (the bottom) of the liner toward the pond? Or have it level and just rely on the lower wall section for the water to flow out?
Mine is flat water flows out over the water fall
I was thinking of keeping most of my manifold piping toward the side of the bog opposite of the pond.
I have a line running down the far side of the bog and one running down the near side. It does not seem to matter.
 
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Addy, I guess I'm over thinking things!
Uh, technology question...
How or what did you use to draw that quick blue pipe drawing in the previous post?
 

addy1

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How or what did you use to draw that quick blue pipe drawing in the previous post?
I use a app on my lap top, called snipping tool. You can grab a picture and draw on it so I just grabbed a white square and drew some quick lines. It is part of windows.

Capture.JPG


I have the note 9 I could have done it with pen on the phone. But I don't post well on the phone.

My hands give me a lot of issues if I try to use the smaller phone. I tend to use the lappy more than anything.
 
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How do you know how much water to send through the bog? My pump delivers 3000gph. I have roughly half of it going through the bog. The rest goes to my waterfall box filter with bio balls and red luikia on top and a small amount goes unfiltered into my small upper pond that has plants in it. I have valves everywhere so I can alter the amount going to each place. I guess my question is, can you have a high flow rate through the bog or should it be a slow flow?
 
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How do you know how much water to send through the bog? My pump delivers 3000gph. I have roughly half of it going through the bog. The rest goes to my waterfall box filter with bio balls and red luikia on top and a small amount goes unfiltered into my small upper pond that has plants in it. I have valves everywhere so I can alter the amount going to each place. I guess my question is, can you have a high flow rate through the bog or should it be a slow flow?
The advice I have been given and read at various places on the interenet is that all the water in your pond should pass through the bog filter in one to two hours. Bear in mind that lifting the water and diverting it through valves may very well result in a pump output of less than the rated level. I reckon mine takes a bit longer than two hours and the plants are doing fine. Stands to reason that the slower the water passes through the gravel, the more nutrients will be taken up by the plants. Hope that helps.
 

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