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Thread: Where to drill

  1. #1
    Senior Member groupie02's Avatar
    Join Date
    Sep 2006

    Where to drill

    Hello everyone. I have my 65g tank (36"w x 18"d x 24"h) which I'm almost ready to place on it's in-wall stand.

    I plan on having a sump underneath. I want to have two overflows of the 90 degree elbow type that OSD describes. I'll most likely do an over tank return from the sump.

    I also want a close loop so that I don't have the powerheads in my tank.

    Here are the big questions. Where do I drill my holes? How far from the top and the edges? Should I consider having my close loop output on the side panel(s)?

    Your suggestions are appreciated.
    65g - 80lbs LR - 4x36" 39W T5 HOs (2x10000K,2xActinics) - CSS125 - 25g sump - Mag 7 return - Blueline SD-1100 Closed Loop with OM Squirt * 2x Amphiprion ocellaris - 1x Paracanthurus hepatus - 1x Zebrasoma flavescens
    29g - with stuff ;-)
    Coming Soon - 120g with more stuff

  2. #2
    Moderator cres's Avatar
    Join Date
    Jul 2004
    Exact right placement is nearly impossible to predict, your specific rock work will affect the way water will flow, however, ...

    For the OSD type drain, you should probably aim to have your drain holes 4.5-5" below the trim.

    For the closed loop, you want to help induce a top bottom turn over. So, either place your intake low and the return high, or vise versa. What I have is two 1" bulkheads about 8" from the bottom, equally spaced on the back. My returns are over the top to two Ocean's Motions Revolutions. My sides are exposed, so, having a Jacuzzi nozzle for the return from the closed loop wouldn't work. But, if you are in wall, I would suggest that route.
    Sarchasm: The gulf between the author of sarcastic wit and the person who doesn't get it.

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