Please validate "Tcmtech dripper irrigation" DIY rainbarrel or small bucket irrigation

You gotta try this or it is stillborn. It is amazingly simple but nobody else has tried it! All you need is something that floats (Round is probably best) and you attach your dripper inlet and outlet to it, attach it to some soft tubing in a rain barrel, adjust the speed and away you go. Highly adjustable Dripper irrigation for small plots! And automatic flood buffers in a thousand rainbarrels across the city! http://farm9.staticflickr.com/8450/8036249196_1559e0e9bc_z.jpg