Here we go -- FINALLY! A pond for wildlife...

[combatwombat]

I have another idea - and yet another amazingly professional (not) engineering drawing.
I am going to have a lot of the black flexible PVC left. I had been thinking I might want some extra water movement down at the far end, to help push water in the direction of the intake bay.
I have a 3000 gph pump. If I were to put in a Y as shown in the yellow highlighted area, I could snake the black pipe behind the waterfall rocks and run it down to the end of the pond. I could install a valve to control the flow.
BUT -- is the 3,000 gph pump enough to do all that? I know I don't want a fast flow through the bog.
Is this a good idea? Is it even do-able, given the size of my pump?
View attachment 150404

Do you know your head loss to the bog and desired flow rate through it? Pump curve?

 

[GBBUDD]

Did you put that stuff in your bog? Did you skip the graduated rock? I was thinking along the lines of window screen material.

I was going to do simply the 3/4 but that has smalls 3/8 x 3x4 per say that could get in the spaces but I went with the 2-4 6 inches . So no I didn't skip the mediums but I did skip the 4 to 6 on the aqublocks and went 16
8 of 3/4 for 24 inches

 

[GBBUDD]

Also it's much much larger then window screen

 

[bagsmom]

Do you know your head loss to the bog and desired flow rate through it? Pump curve?

I don't know any of that stuff but I know I should!!!! What do I need to know and measure? Distance from pump to intake bay? Height difference between bog and bay?

 

[combatwombat]

I don't know any of that stuff but I know I should!!!! What do I need to know and measure? Distance from pump to intake bay? Height difference between bog and bay?

Just need to know elevation change from pond water level to bog water level and about how much pipe there will be to get from the pump to the bottom of the bog. And size of pipe—assuming 2” pvc?

 

[addy1]

Did you put that stuff in your bog? Did you skip the graduated rock? I was thinking along the lines of window screen material.

I used window screen years ago for a small pond bog, it loaded up with silt and clogged.

 

[addy1]

SERIOUSLY concrete sauna tubes is an easy way to control the stone They sell them so that there is like 4 slightly different sizes in the same size. so it's like 8 inch 7 7/8 ... 7 3/4 and 8 1/8 that way they can ship them out with one inside the other. Pull them apart but still interlocked duct tape them Tape a 2x4 along the side of them to control the rigidity and make it long enough to get where you want it ... they are nothing more than card board in a tube shape ...... Hey for that matter i bet if you ask some carpet places you may be able to get carpet roll tubes or linoleum

Good idea @GBBUDD then just shovel the rock in it will flow down the slope.

 

[bagsmom]

Just need to know elevation change from pond water level to bog water level and about how much pipe there will be to get from the pump to the bottom of the bog. And size of pipe—assuming 2” pvc?

The elevation change is right about 2 feet. Not much height.
There is 18 feet of pipe between the intake bay and bog. 2" flex PVC.
If I did a Y as indicated on the drawing, the distance between the Y and the far end of the pond is 17 feet.
If this seems at all do-able, I was thinking that having ball valves for both would help adjust everything. I don't need a massive amount of flow down at the end of the pond. It just seemed a shame to waste that PVC if I have it. It would be nice to have a little added movement down at that end.

 

[combatwombat]

Got it. If you’re not looking for much flow from the bog, then adding a jet at the end of the pond with 500-1000gph should work.

 

[Jhn]

As addy, said I would be very hesitant to put any fine mesh screen down in a bog due to clogging, as would Be a risk not worth taking. Ideally you shouldn’t be sending larger solids into your bog, and if it setup correctly as the flow enters the bottom of the bog and slows it should let all the silt fall out of it, anyhow. Also keeping in mind plant roots are a magnet for collecting silty crap, ie you are going to get some stuff falling into the bog from above and ime a lot of plants can send roots down 18” and clog up a screen. Lastly the silt if left alone long enough can do it by itself enough to make it a pita to try to blow it out with out exposing the screen to do it.

 

[bagsmom]

Did y'all see the drawing showing the cross section of the culvert pipe and the PVC? Do you think that could be a workable plan, allowing for the snorkel to drop a pump down? Using the culvert as a settling area would be less effective than water matrix blocks, for sure. But do you think there would be any benefit to doing it that way? It might keep some of the solids from going up into the gravel. I have the stuff, so there would be no extra expense.

 

[addy1]

You mean everybody ignored your ???? I would answer, but my system is so simple I may mislead you.

Did y'all see the drawing showing the cross section of the culvert pipe and the PVC?

 

[bagsmom]

You mean everybody ignored your ???? I would answer, but my system is so simple I may mislead you.

Oh no - I don't think anyone ignored it. I think it popped up in between other exchanges so maybe it wasn't seen. Addy1, I would love to hear your answer! I am sure it is that all the extra stuff is unnecessary!
I do think that the whole wetland filtration system is more a matter of following some basic principles, rather than there being one specific correct way to do it. I think anything will work fine.
But I do have these materials here and if it makes even a little bit of sense to use them - especially now at the very beginning, when the install is easy, I figure I might as well.
I don't plan on having a heavy fish load in the pond. But I wouldn't be surprised if a duck or goose found it. (Oh no!!!!! That would add extra nutrients to the water, for sure.) Being surrounded and under so many oak trees means there will be debris - even if I plan to suck a lot of it into the intake bay and net out.
I figure I'd like to do anything I can (using what I have) to make the filtration work as well as it can.

 

[addy1]

I don't see why it would not work.

Keep the pump drawing from water, not on the bottom and you will be fine with solids. I draw none into the bog. The leaf basket only gets cleaned when I pull the pump in the fall.

 

[bagsmom]

I don't see why it would not work.

Keep the pump drawing from water, not on the bottom and you will be fine with solids. I draw none into the bog. The leaf basket only gets cleaned when I pull the pump in the fall.

Thank you!!!!!!