this is a picture of the jig I made from an Idea I got off anothers web site for keeping straight line on your slot grooves.
This is a picture of my first spillway that will dump into my skimmer area.
Before I installed my spillway I wanted to make some teeth to match the height on my first splillway that came out of my bubble trap box so my water height.wouldn't go over that spillway and make it useless.
well in this photo you can see I made my teeth. I used a double fluted blade router bit. I usually use a 1/2" cutting surface bit.
