![]() |
|
#1
|
|||||
|
|||||
![]() Takes prep time though, the potato/peroxide science, and you need to be home. One great feature of the battery powered air pumps (the ones I have anyhow) is that they sense power outage & switch on automatically. The magic of relays.
__________________
Mike 77g sumpless SW DIY 10 watt multi-chip LED build ![]() |
#2
|
|||||
|
|||||
![]() True enough, but if for some reason your air pump breaks or you run out of batteries its an option.
A low tech emergency back up. |