| Thank you Aquitori & Mike,
I've been keeping a close watch on the fish since reading Dick's post & haven't yet seen anything that looks like a problem. When I read Dick Benbow's story about the air pump transferring something from the filter building to the pond, I started wondering what it could be. I suppose it could have been fumes from an evaporating solvent or paint, but he didn't say. I do know that an unvented gas water heater in a basement can asphyxiate people in the house, so I started wondering about the gas flames in my 'ventless' heater and the level of oxygen in the air. Also, I recall reading stories in the newspaper about people dying from using kerosene heaters in a closed up room or building. However, I don't think keroses heaters are very clean burning and would probably burn up a LOT of oxygen.
The filter building does have windows and doors and I'm sure they aren't completely air tight, so that must be enough to keep things OK in there. I really don't want to set the air pumps outside because right now, they would be pumping about 20 degree fahrenheit air in the water! It's darn cold here. Too cold in Kentucky for December. We don't usually see winter weather this cold until January.
Dale |