I have my hives sitting on a wood frame, that is screened with #8 wire, the hives have top entrances. The screen frame is located 6-8 inches above a 4-foot, by 8-foot piece of plastic cardboard, (political signs). The plastic signs are laying on the ground. I want to use the water to wash the fallen debries, and "mites" from the plastic sheets. I'm sure some water might splach into the lower hive boxes. Is this whole idea seam like a good idea. Do you see any problems here?