Dual overflows joining up

[Reefrookie733]

I run the water level quite high in my overflows, my emergency drains are just flowing, by this I mean the tiniest trickle of water. This gives me the quietest running system, but perhaps not the safest or most optimal to the purest. I also ensure both the emergency and siphon drains are both out flowing under the sump water level, this removes any gurgling or trickling noises.

When I ran filter socks, I drilled a hole close to the main drain in the perspex filter holder, both drains ran into a 7" sock. The sock holder, still has the 50mm and 25mm bulkheads.

Yeah sam i know im going to have to do some trial and error with this system to get it quiet and effiecient, but im trying to cut down on the fewest screwups in the planning stage, more like "measure 3 times, cut once!" lol