If it was calm during the snow, there could have been enough ice form over the diffuser area to allow the snow to accumulate.

Once the wind starts blowing the diffuser should poke a hole through everything. (I would think)


3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).