I have a sequence 7200RPM and it supplies both my creeks and waterfall nicely and soon to be bog as well.
Addy how is a BD going to work in a bog? How are you keeping the drain from getting clogged with gravel, what kind of screen are you using? Then do you shut off the bog and just let it gravity drain or do you use a hose and force the stuff to the bottom and hopefully to the drain?
I have a drain in my bog, sort of, it is the piping that feeds the bog. We have emptied it twice to work on the piping. No muck came out. Mainly for Harry I was thinking if his bog is like a second small pond i.e. no pea gravel, but plants and some filter material, the debris will settle to the bottom. My deck ponds get a layer of muck in them that I just vacuum out.
If mine ever decides to clog up, which I don't think it will, we can open the ball valve stir the gravel or use a garden hose to push water from the top towards the bottom to flush the gravel. I used to do that with my mini bogs (whiskey barrels) filters I had on one of my arizona ponds, back flush the gravel, bottom drain in the barrel to let the dirty water out.
Addy1: What is the value of pea gravel in the bog? Other than to make it more difficult to clean out the fish poop that lodges in the interstices? My bog has no bottom drain but I can reverse the pump with the siphon effect and get most of the bog liquids to get back to the big pond, then vacuum or pump out the gunk from the bog.....
Is there any reason to go with one bacterial soup versus another? Do I need these microbe lifts at all?
Tell me again why use bottom facing holes in the PVC pipe? Upward facing may reduce the probability of clogging especially if I just stick with lava rocks and sponge material and no pea gravel?
Do you see anything wrong with trying this first before I dump in pea gravel?
harry
A bog / plant filter can be however you make it. I put my piping with slots facing down, with my pea gravel did not want to have to dig up those pipes, (2.5 feet down) to dig out pea gravel that might clog up the holes. Without pea gravel, if you are doing lava rocks, sponge material, plants, you don't even really need bottom piping. Just have your water run from the one end through the media, plants lava rock etc on its way to the pond. My small ponds get a lot of settled muck on the bottom of them, I just clean them out once a year. They make great plant filters for the big pond.
Try adding stuff to your bog, plants etc then you can decide if you want to go the pea gravel route. I chose the pea gravel because I wanted a well planted bog.
I don't use any of the bacterial soup stuff. Some do and like it.