#11
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Also a remote possibility the difference between Imperial & US gallons may be a factor, depending on where the hardware is made.
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Mike 77g sumpless SW DIY 10 watt multi-chip LED build http://www.canreef.com/vbulletin/showthread.php?t=82206 |
#12
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To accurately determine volume of water displaced by rock or any submerged item you would need to weigh it.
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Mike 77g sumpless SW DIY 10 watt multi-chip LED build http://www.canreef.com/vbulletin/showthread.php?t=82206 |