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Discussion in 'Algae Scrubber DIY' started by atoll, Sep 17, 2015.
One of the very best designs, I based my own ATC on it.
Good video, the only exception I would make is to not use just sandpaper to rough up the screen. That's a decent first stage, I use a wire brush crimp attachment on a drill at low/med speed (which gets the shine off, deep into the holes) and then a saw blade in 1" concentric circles, gets your screen much rougher
I used a hacksaw blade dragged across the surface of the screen to rough mine up.
The blade I use in the video above is a Stanley sharp-tooth wood saw blade. It has sharp pointed teeth that tear up the material and leave it prickly, similar to using a hole saw except it doesn't easily snag and tear the canvas.