OK, so I filled the tank with water last night and it has been running since as I am doing a leak test on all the plumbing. Fingers crossed, so far only one tiny leak on an o-ring on the front half of one of the manifold Cepex valves - I tightened it up as much as I could and will continue to watch it (it was only about 1 ml of a leak over 12 hours). Easy fix as I can close the valve and pull off the front adapter where the o-ring is.
Took a bit to dial in the Bean Animal tube heights and the gate valve position on the full-siphon drain line to run properly and also make things quiet at the target flow rate. I think I am pretty close. Running the Varios-8 pump at a calculated (output/power/pressure head) flow rate of 1100-1150 gal/hr - shooting for roughly 7x tank volume per hour per BRS's recommendation. I have lots of room to go up/down with this pump. That said, this pump is stupidly quiet. I effectively have to stick my ear up to the side of the sump to hear it. Running the GFO and Carbon reactors without any substrate (just leak checking). I mounted the reactors over the skimmer section of the sump, so when I open them up any spillage goes into the skimmer section - thanks all for the advice on mounting position!!!!
Noisiest thing in the tank right now is the waterfall going into the filter socks - I may need to build a little acrylic dam or something to change the flow pattern. This noise seems to be amplified within the sump chamber. Everything else is pretty quiet. A bit of noise as the water passes through the weir, but not much more noise overall than our old 29 gallon tank we had where this one is going.
Did a simulated power outage and I have lots of room to spare in the sump when the siphon breaks and no more water runs out of the tank (one of the reasons I got a big sump - it is nice when the math turns into reality like you planned). The return line back flow valves work great. Skimmer water height is running right in the manufacturer's window. Now I need to set up my ATO. Going to work out a plan to take water from the reservoir in the garage and get it to the tank a few rooms away..............until then, a temporary bucket will have to do.
MarcoRocks just showed up and they look nice. That is the next project (along with the ATO plumbing).
Looking forward to seeing the Mitras lights at scuzy's next week - thanks for the kind offer!
Can anyone comment on how much heat n=4 54W (48") T5ho bulbs emit? Trying to compare to an LED unit of similar wattage (200W
+). Haven't ruled out the hybrid light just yet, but I would really prefer not to go down a lighting path that will require a chiller. We will have no hood and about the warmest we let it get in the house is 75 (regularly in summer) or maybe 77 F when we go on vacation - so just looking for thoughts on T5ho heat production. Thanks.