I was wondering about isopropyl, all alochol will absorb water to some degree? Looking for the least toxic for the fish. I just picked up some denatured, which I also use in furniture refinishing, but I'll try the isopropyl first. Thanks, Rainman.

The air stopped flowing again last night so there is still moisture in the line. It has begun to snow here pretty heavily so I hope I can get the air going again before it accumulates over the thin ice.