Today I was taking it out of 6 feet of water with a hard tine rake. Good part is once you get it off the bottom you can either pull it in hand over hand or drag it to a shore. The way I look at it is the more I mechanically or manually remove the closer I am to getting the carp to be more effective. And I planted 200 per acre. I can always seine them out later. If I had a bigger pond I would make a drag line and a 5 foot wide rake. Jenson has a Lake Rake that would also work. But you have to be careful as you can really grab some weight. My electric with 55 lbs of thrust comes to a dead stop trying to move too much. The stuff is real light once the water drains out. An old style grappling hook tossed way out and pulled it slow would work in some places. If you had some helpers you could knock down an acre a day. I think the objective is to lower ratio to get to point grass carp get ahead of it.