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#14
04-10-2012, 12:46 AM
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I use both.
Check valves work great, but over time the seals dry due to the salt in our tanks. I shut my return pump off for target feeding so I get to check them regularily to ensure function. I replaced them recently... once in 1.5 years. The siphon holes are back up as in extra space in the sump. You can't be too careful.
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 My 70 Gallon build: http://www.canreef.com/vbulletin/showthread.php?t=66478 My Mandarin Paradise: http://www.canreef.com/vbulletin/showthread.php?t=72762 I wonder... does anyone care enough to read signatures if you make them really small? I would not. I would probably moan and complain, read three words and swear once or twice. But since you made it this far, please rate my builds. 
Last edited by paddyob; 04-10-2012 at 12:48 AM. 
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