current electric bill under $100

[MarkP]

After some thought I think it is not good to turn off the UV lamp. It provides a barrier to contamination whether the water is flowing or not. Rather, a barrier to contamination is needed whether the water is flowing or not since given enough time the bacteria could get through. What about a dripping faucet? There is enough flow to carry bacteria across but not enough to start the lamp. Compromising the effectiveness of the system for the sake of a few bucks is false economy.

Terracore: What system do you have? The Pura UV-BB-3 system claims to treat 15 gpm but use only 22 watts.