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  1. #1
    Join Date
    Aug 2005

    Size of bulkheads

    What would you guys recomend for bulkhead size for a closed loop, overflow and return. The tank is a 75g and the sump will be a 20 or 30g tank. I'll be using a SCWD on my closed loop but they have 3/4 in and out. Should I use 3/4 bulkheads or just tone down the piping when I get to the pump and scwd?

    My other quick question was that my overflow will go coast to coast on my tank, what I do with the return? I just pipe it over the top of it instead of using a bulkhead?

    Thanks guys.

  2. #2
    Senior Member SnelgroveReefer's Avatar
    Join Date
    Feb 2005
    IMHO, I would go 1.5" on your bulkhead (2.5" hole). This is an easy plumbing size to get and you can put a ball valve on it if you don't need that much overflow into your sump. That should give you about 900g/hour I beleive. You can then step down the size to whatever you require.
    90g Display, 30gal sump w/ refugium, MAS CR418 calcium reactor w/ Mag5 and Blueline CO2, Vertex IN-180 protein skimmer w/ Mag5, Mag9.5 return, 150 Phosban Reactor w/ MJ 1200, 1 Ebo 200w heater, 90lbs. LR, 80lbs. Carib-Sea aragonite, Cooltouch MH lights -2 x 400watt (20K & 14K) PFO hoods & Coralife 65w PC in custom hood with fan, Coralife 3-3/4watt mini moonlights, 8 jet Closed Loop System w/Reef-flo Dart, Aqua-Safe RO/DI, JBJ Auto Top Off unit w/Mag 5 return, 12g Nano cube, 10g quarentine.

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