Sweet DIY overflow box!

  • We are currently upgrading MFK. thanks! -neo
ilikewomen;1818085; said:
Very nice,but i still dont understand how these work lol.
Click to expand...

Gravity. the box on the back has water in it, but a couple inches lower than the tank water level. Once the siphon is filled gravity pulls water up and over the glass and into the second box. It then overflows over a middle divider and into the PVC to your sump.

HTH
 
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