where can i get metric check valves? - Canreef Aquatics Bulletin Board

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where can i get metric check valves?

#13

03-10-2011, 05:08 AM

reefwars

R.I.P.

Join Date: Apr 2010

Location: Calgary, AB

Posts: 6,186

drill some holes just under your waterline in your return facing down once water lowers past that point....syphon break

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