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What size holes to drill for overflow of 80 gallon? |
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What size holes to drill for overflow of 80 gallon? |
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01-17-2003, 06:01 PM
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#1 |
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Just Moved In
Join Date: Dec 2002
Location: SLC, UT
Posts: 19
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What size holes to drill for overflow of 80 gallon?
What size should I have the holes drilled for in the overflow of my 80 gallon?
I think All-Glass uses a 1.5" and 1.75" holes for their pre-drilled tanks, are holes this size sufficient? |
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01-17-2003, 06:48 PM
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#2 | |
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Moderator
Join Date: Nov 2000
Location: Wichita, Kansas
Posts: 5,301
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Re: What size holes to drill for overflow of 80 gallon?
Quote:
 Are you talking about hole size or bulkhead size, usually everyone talks about bulkhead size (the size of pipe that fits in the bulkhead) which Im assuming you are. I think a 1.5" bulkhead would be fine as the ONLY overflow for the tank, but if you want dual overflows I would probably go with 1" bulkheads. Also remember that there are some off brand bulkheads that have a weird diameter hole size. I would definately get the bulkheads first then give them to the person drilling your tank so there is no room for error. Generally a 1.5" bulkhead will require a 2 3/8" hole. Everything evolves around how much flow you want to put through your overflow. If its an SPS tank I would go w/ dual overflows and make them 1" personally, maybe even 1 1/4". |
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01-17-2003, 07:31 PM
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#3 |
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Just Moved In
Join Date: Dec 2002
Location: SLC, UT
Posts: 19
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What size return holes would you pair the 1" dual overflow holes with?
Last edited by sunflashx; 01-17-2003 at 07:42 PM. |
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