You probably bought one of his regular designs. I sent him some plans for mine and he built it pretty much like I wanted it, BUT he did not build the bubble trap like I drew it up and instead put a large sponge mechanical filter in it's place. I didn't know he did that until I opened the box. Now I have trouble with microbubbles, because the sponge does not stop them completely. I am playing with it to see if I can tweak it before I do anything drastic. I really don't like to use sponge filters. I will give it some more time and effort before I build something else.
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