Several months ago I remember reading a post by one of the aeration experts where they gave an approximate time for a winter diffuser to cut thru X inches of ice. Anybody remember the numbers? Just curious, I know I have a thick ice cover here. Got some snow on it and fired up the winter diffuser at 7:30 this morning. Still no sign of breaking thru 5+ hours later. A lot of air (4 to 5 cfm) coming thru that diffuser. I walked down and checked, thinking I might have a frozen line but system pressure is normal and all appears operating as usual.

Has to be one big bubble under there!

Last edited by Bill D.; 01/20/16 01:52 PM.
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