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Does the spray bar need to be above the water line? I know you get more aeration that way. I would also like to extend the bar to go across the entire water column. Has anyone extended their spray bar??
You can extend the spray bar, all you need is a piece of pvc thats the same size, drill holes in it every 1/2" or so, and cut a short piece of your return tubing to slide between the current spray bar and the new one.
I keep my spray bars right at the surface. I dont like them above because it causes too much evap in my house, but right at the top keeps the water moving