WMAS Discussion Forum : 40 gallon overflow http://www.utahreefs.com/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 11 Jul 2026 02:51:20 +0000 Wed, 29 Aug 2007 13:20:23 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.03 360 www.utahreefs.com/forum/RSS_post_feed.asp?TID=20175 <![CDATA[WMAS Discussion Forum]]> http://www.utahreefs.com/forum/1by1.gif http://www.utahreefs.com/forum/ <![CDATA[40 gallon overflow : The overflow needs to have enough...]]> http://www.utahreefs.com/forum/forum_posts.asp?TID=20175&PID=176481&title=40-gallon-overflow#176481 Author: Mike Savage
Subject: 20175
Posted: August 29 2007 at 1:20pm

The overflow needs to have enough overflow area to handle the amount of flow your pump delivers. It does not need to go to the bottom of the tank unless then bottom of the tank is where it is drilled. Many tanks have tempered bottoms that can't be drilled. There is a huge flow difference between 3/4" and 1" pipe. I would still use a 1" bulkhead for the drain and 3/4" for the return.
 
Mike
]]> Wed, 29 Aug 2007 13:20:23 +0000 http://www.utahreefs.com/forum/forum_posts.asp?TID=20175&PID=176481&title=40-gallon-overflow#176481 <![CDATA[40 gallon overflow : I&#039;m thinking of downsizing...]]> http://www.utahreefs.com/forum/forum_posts.asp?TID=20175&PID=176475&title=40-gallon-overflow#176475 Author: stephan
Subject: 20175
Posted: August 29 2007 at 12:09pm

I'm thinking of downsizing from 100 to 40 gallons. Petco has that $1 per gallon sale going on. The tank is not drilled, but I want to put in an internal overflow. Here's my questions:
 
-How big does the overflow need to be?
 
-What size bulkheads should I use for supply and return if I only want one overflow?
 
It seems like 1" bulkheads are pretty standard, but that's usually for larger aquariums. Just wondering if I should use a smaller size for a 40 gallon.
 
Thanks in advance.
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