koshki said:
Thanks, Addy. Do you mind that I still have a few questions? Remember, I'm a beginner, and I've never seen one of these in action.
1. Is the concept to pump pond water into the bog? How do you get it from the pond to the bog? (Just confirming...your post doesn't actually say what the bog pipe is connected to.) (Or at least I didn't see it.)
I use an external pump, the water is pumped into the bottom of the bog, upflows through the gravel. Slits cut into pvc piping.
koshki said:
2. Do you draw from the bottom of the pond? Is there a recommended flow rate? It would seem to be relatively slow, given the small spout you have from your bog to the pond. Do you actually pump water back into the pond, or does it just overflow from the bog? Does it overflow from more than that one spot?
I draw from around 1 foot up from the bottom of the pond, my pump is rated at 6800 or so gph. My bog flows back into the pond via a 3 foot wide water fall rock, it also comes over the wall here and there.
koshki said:
3. What role does the relative elevation of the bog to the pond play? The spot I'm considering is slightly uphill from my pond. Does this matter?
You can have it as high as you wish, mine is around a foot or higher than the pond water surface. My bog is on the down slope side of the pond, had to build a 8-10 foot berm wall to support it.
koshki said:
4. Is it possible/recommended to pump bog water to a waterfall back into the pond?
With a bog you don't really pump the water out, it just flows out, mine flows out via a water fall rock. Make the bog higher than the pond, waterfall back into it. This is early spring, heron net in place, plants just starting to grow.
The skimmer is at the far end of the pond, the line coming from the bottom of the pond is 3 inch pvc
koshki said:
5. Do you still run pond water through a filter or skimmer? (in our case it goes from the skimmer to the waterfall.)
I have a pool skimmer with a leaf basket to collect large stuff and a leaf basket in front of the pump to collect anything that gets pumped up from the pond line.
koshki said:
6. Does this take the place of a biological filter? We have one of those bags with a videotape-like medium in our waterfall.
I have no other filtration in my pond except the bog. The shunbunkin tank has a 55 gallon sort of skippy type filter, mainly because the water going into that tank was unfiltered big pond water.
koshki said:
Sorry if I'm being obtuse. I'll need to know all these answers (and more!) if I am to convince DH that this is a good idea.
Thanks for your help!
anytime!