In trying to place the pump at the end of the filtration system. This way the pump is not breaking up poop and getting clogged with feathers. A pre-filter could be used of course, but that just keeps bio mass in the pond rather than filtering it out.
My pond is in the ground and 4ft deep. A gravel vacuum works by means of gravity siphon. I would need a lower elevation to drain to, which I don't have. I pump the water out.
I have 3 ducks now (4 the other day but an opossum took one's life). My ducks are all Rouens and I intend to stick to them and possibly add a few Muscovy if I ever find them available near by. I would not go over 8 ducks at the very most, but will likely only have 4-6. My pond is currently 1500...
10 times an hour? That would be 15,000-20,000 gph... That's not feasible. It's also too much flow for most filtration systems. As for the swirl filter, I'm not against that idea if I can find a way to DIY one that will work well. A plastic drum and some pvc should do the trick.
Looks like large river rock. Eventually even it will sink into mud and fill in with duck poop. With bedding, I can rake it up and put it into the compost or even deep litter in place right in the duck run.
I actually have river rock around the pond. Not good for ducks. The rock is a mess and impossible to clean without pulling it out. It leads to pools of water and muck every time it rains.
I already have a pond and the start of a filtration unit I never finished building. My pond was not originally built for ducks, but for koi and goldfish. A few years after building I had the idea to add ducks to our backyard flock with the pond area as their run. I'm now considering letting the...