im setting up a single corner overflow 90g rr AGA.
I am trying to determine whether or not I want to make dual spraybars for the return, or if I should just have 90 degree outlets.
I figure that the advantage of a spraybar of the single outlet is of course more evenly dispersed water flow.
Are there any disadvanteges? If I place the spraybars below the surface of the water I need to drill a 1/8" hole at the top of the return to keep them from back siphoning in the event of a power outage correct? What exactly does drilling that hold do, and does it add any extra noise or bubbles to the tank?
I am trying to determine whether or not I want to make dual spraybars for the return, or if I should just have 90 degree outlets.
I figure that the advantage of a spraybar of the single outlet is of course more evenly dispersed water flow.
Are there any disadvanteges? If I place the spraybars below the surface of the water I need to drill a 1/8" hole at the top of the return to keep them from back siphoning in the event of a power outage correct? What exactly does drilling that hold do, and does it add any extra noise or bubbles to the tank?