BeanMachine
Active member
I didnt draw the fittings but I plan to have a true union ball valve right before each of the Sea Swirls. Ill see if I can make a double wye instead of a cross work. Thanks Steve.
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Are you planning on having a high flow sump or slower? With those two Vectras, they will suck your return section dry real fast.
My L1 is running at about 90% since i want a higher flowing sump
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Interesting about the return section? what are the dimensions of your return section?
I'm anxious to see if your sump will hold all the water when your return pump shuts down. It's so close on my sump. A couple more gallons and it would overflow. Something I didn't think about when I designed it. Those external overflows hold a lot water
Looking great let me know if you need anything else I can only get regular pipe and fittings nothing weird colored just grey n white.
Also transparent blue for those who money is no object
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Quite honestly, the Vectra is a good pump, but there have been many issues reported with it. In the end, it's still an outsourced Chinese motor block with a quality driver (developed by EcoTech), but the heart of the thing is still questionable. I believe deep water aquatics uses the same motor block and they have had issues as well. The driver side of EcoTech appears to be pretty solid, but I still question the motor block. And full disclosure, I own a Vectra L1 and it has worked well for the year I've had it, but I still have my trusty laguna 2400 at hand as a backup.
Its pretty easy to calculate how much water will drain into the sump when the power is cut. You just need to know the size of the overflow, the length and diameter of the pipes and how low in the tank the water will siphon from the returns. Just leave yourself enough volume in the sump to handle it because power outages will happen and you can't rely on one-way valves. I designed my sump to be 18" tall based on that calculation, assuming a working water level of 10".
Another thing to consider is whether the tank can handle the amount of water in the return section of the sump without overflowing in the very unlikely event the drains clog. My return section holds only about 4-5 gallons which the tank can easily handle.
I have the Laguna Max-Flo 2900 that I used as my return pump before the RD3 230. It also uses the Askoll motor block like the Fluval SP6, but is slightly lower wattage. The flow chart is pretty close to the SP6 though. Let me know if you're interested and I'll send you some pics and give you a good deal on it.
I assume you're going to run a Bean Animal drain on your tank. If you run with one return pump and divert to a manifold, you will be constantly adjusting your gate valves on the full siphon drain. Reason being is, whatever reactors your manifold is feeding will clog over time which sends more water to the DT causing your open channel to take up more slack.
I would run a separate pump for the manifold to avoid this. I had the same setup in my old tank and constantly had to adjust the gate valve when the reactors clogged up. I ditched the manifold and ran the reactors on separate pumps. My new build will have one RD3 for return and another just for the reactors.