You too have been busy. the last i saw your post you had just added one load from your pickup and if memory served me right it looked like there was at least another 8 loads to go. Trust me i know the feeling. It's coming along nicely are you as jhn and almost from the start when he fired up the bog his waters cleared right up?
I used 3 cu. yards of gravel. 3 loads with my pickup.
The water was pea soup green when I started, like every Spring.
When I finished the gravel and got the pump going, the water clouded up from the dirty gravel. I tried to rinse every wheelbarrow load of gravel as best as i could, but of course there was still some dirt in it.
The pump was started up on Tuesday and now it's Saturday and I can see most of the (approximately 3 foot deep) bottom. I'm amazed. Im guessing a few more days and it will be crystal clear and the plants aren't even established at this point!
Just as a note: my pump is a submersible...Tetra's debris handling DHP-3600 which pumps 3690 gph and a maximum height of 11.4 feet.
The flow out of the bog seems perfect. Not too much volume, not too fast and not too slow. The pump is sitting on the bottom of the pond at the opposite side from the bog. All the plumbing is within the pond and bog, so no fears of leaks accidentally draining the pond. In the past I tried to keep the pump raised up with a rope for fear of that. Now I don't have to worry.