my homemade bubbler

[stinkyattic]

. Therefore, also you should have an off time to your bubbles too, if you can afford a timer. The cheapest I've found is Intermac (I think) about 20$, let's you do about 30 min. on and 45 off or something, which works great. If I was rich I would do 2 on and 15 off or something.

Since a bubbler is low-voltage, you can go with those really cheap 'vacation timers' that you are supposed to plug a lamp into to make it look like you're home when you're really on vaca.

I got one for $6.

Problem is, the interval is 30 minutes.