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ideal width of overflow and dimension of drilled hole


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Is there any calculator or guide online for me to calculate the width of a overflow i need in my tank and also the diameter of the hole to drill.

Planning on a 3 x 2 x 1.8ft tank. need to make it quiet and efficient and worry-free.

Many thanks.

I know reefcentral has.

http://www.reefcentral.com/

Look at the left side. There's a drain/overflow size.

Tank size:36"x36"x24"

Return pump" 2x Reef Octo 5000

Skimmer:BK Double Cone 200 on Reef Octopus DC 5500s.

Wavemaker:2xVortech MP40wES

Chemical filtration:1xeducator FR(biopellets)

Chiller:1hp Daikin compressor.

Lighting:2 x Kessil A360we

Auto topup system: JBJ ATO + new jet 1200

Dosing system: Kamoer 3 channel.

Additives: ESV 2 part.

Power consumption

2XReef Octo 5000: 120watts

BK skimmer:50watts

2xVortech wavemaker:70watts

Daikin compressor:775watts

Lighting:180watts

Ato system:21watts

Exhaust fans:16watts

Refugium light:27watts

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For the hole size, you need to confirm the diameter of the threaded part of the tank adaptor fitting. My 1" fittings measured 32mm and used a 35mm hole saw. Not so ideal but works fine without leaks, thanks to the larger flanges it has.? You may want to get the tank adaptor from Madpetz as they use two female adaptors and a threaded pipe... Which gives a much wider flanges than the standard ones you get from hardware shops.

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