Machete, the return will be going up over the back...I have an SCWD and two u-tubes which will hopefully give me some alternating currents in the tank. I also have a union for the emergency but wasn't sure whether to use it or not. If I lower the emergency pipe into the tank as well, I will for sure need to use it.
Fkshiu, thanks for the advice...I don't have any Herbies to readily look at so all advice is appreciated. I will lower the emergency as you suggested.
Anyone else with some thoughts?
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Mark...
290g Peninsula Display, 425g total volume. Setup Jan 2013.
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