Hey Rock ,
You can buy the hardware kit for the waterfarms for $12.00-$15.00 and use a 3 gallon bucket inside a 5 gallon bucket , single outlet aquarium air pumps are cheap too . Bet you can make 1 for 1/2 price or less . My Mrs. made all 6 of ours .

Search on here for "dwc/drip hybrid" . There should still be a pic. or 2 of ours on here .

Peace
Crispi :jointsmile: