Looking for a return pump for my Waterbox 220. Thinking of going with the Neptune COR-20 but would love to hear from all of you. Give me your thoughts. Thanks in advance!
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I initially had two Cor 20s for the loops on my tank, not sump returns the returns have a 12' head. The cors were placed directly under the tank just as loop circulation pumps. They were really easy to hook up and set up feeds etc. The issue I had was that each pump had to run (8) 1/2" return lines. The pumps simply were not powerful enough for the application. I ended up selling them. My dt is about 135gal and system is about 300. On something smaller these would be very nice pumps.
On a 220 it would depend on your goal flow wise. For me flow through my sump is pretty slow, but my water trickles through an ats and gets held in a 50 gallon cryptic tank. If I remember correctly my sump turn over was something like 4× an hour. My dt flow comes from 16 jets that simply loop water through the tank (no treatment etc it's just for circulation) I don't have any ph just a loop. The loop is what I was trying to run with the cor20s. I just couldn't get the flow I wanted, if they had been setup for my sump return I'd probably still be using them today. The pump that replaced them is a HAMMERHEAD/BARRACUDA HYBRID 6000⁄4590 GPH EXT.
I’m running one I’m change it out plumed in 1” pipe total of 2 feet and only get 350 gph for a pump rated at 2000 gph I don’t buy thatI'm thinking they may not be the best for my system either. I may go with the Reef Octopus VarioS-8 since it's compatible with the APEX if I ever decide to go that route.