I have a glacier bay toilet model #779-923 1.28 Gpf. This is the model with the basin/canister on top where it fills. I needed to replace the water level assembly because it was leaking. I could not find it at Home Depot or Lowe's so I figured I could switch it to the flapper type assembly. Boy was I wrong. The flapper hole in this model is rectangular and quite large. I took off the flange in order to try to find a flapper. When I went to Home Depot, one of the employees found the water level assembly for me, but when I installed the flange back onto the tank, I seem to have forgotten how the washers and nuts go, so now it is leaking from between the tank and bowl. I need help. I am needing a picture of how the washers, grommets and nuts go on.