I just got in from the pond, and sorry to say the line froze up again. It was rolling the water this morning, but when checked on it this afternoon there wasn't a bubble to be seen. I injected about 10cc of denatured alcohol this time. Waited for about 10 minutes and only saw a few sparce bubbles. So I added another 20cc and restarted the compressor. Immediatly I began to see some bubbles forming under the clear ice. I just checked on the pond and the hole was again open and rolling.
It's going to be a long winter!
