I believe the drifts very well might completely cover the box. I was thinking about elevating the pumps off the bottom of the enclosure incase snow were to get into it.
The screen idea is a good one. Might just implement that. Was thinking the enclosure might be inviting to mice, too, but the noise might deter them?
The difference in volume betweeen the lines was suprising and impressive, to me.
Had some question about the diffusers, too, but would probably be better in a different thread.
