Hey all, new here.

So I dug a small pond earlier this summer on my back pasture but it won't hold water. I dug a couple test holes prior to digging and found clay but after digging the pond the ground appeared much more silty and rocky than I was hoping. Not huge, it's about 20 feet wide, 70 feet long and 5 feet deep. After filling it up full it drained completely in a little over a week so I re-dug the overflow pipe and tried packing it in better and now tonight (weather pending) I'm going to apply soilfloc. I bought 55lbs of part A and 55lbs of partB; my plan is to turn the fill pump off while applying and wait about an hour afterwards and then turn it back on. My thought is I don't want the water level to fall too much before the soilfloc has a chance to settle. It's cold water too as it's mostly from a mountain stream. Does that sound feasible? Thanks in advance for any thoughts.