float valves for cheap
 

I was just at Home Depot today and found some float valves for cheap. Most of them are about 12-15 bucks (at hydroponic stores and hardware stores and they have some metal in them). Well, I found all black plastic ones made by air king for $6.95 with an adjustable water leveler. What a great deal. I installed it today for my new tank and it is working great.

des