concept3
Premium Member
I used a dremel (that I haven't returned yet...LOL....sorry Fred! Almost done with it!) with a conical bit. This picture is pretty bad, my hand was shaky cause I just got done halfway.
Here's a better shot. I might keep on going until I feel like the holes are wide enough. I might even make them taller. Hope this accomodates for all the flow.
I also play with my hood back and cut some holes for the fan. I'm gonna go two fans blowing in from behind the halides, and two sucking upward out (heat rises....no?!?), this way, I can turn on the top fans if the water temperature gets way too hot, even without the halides on...