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Thread: overflow box

  1. #1
    Member amdninjaboy's Avatar
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    overflow box

    Hi all,

    My plan now is to add a sump tank underneath my 35 gal tank. I picked up a 20Gal Long to use for a sump. Im wondering now about overflow boxes and water pumps. Ive seen so many different types of overflows im not sure which to go with. Im leaning towards the CPR cs-90 I saw on goreef.com. Im not sure if I want to use this style or a tube overflow style. What is the best, most reliable and least likely to make a mess of my living room. I was then thinking of the cpr overflow and then mating it with a mag5 or mag7 pump with a ball valve on the return from the pump to slow the flow down to a nice level.
    What would you recommend, im looking for lots of ideas..

    Thanks Shane.

  2. #2
    ijo
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    I highly recommend you stay away from hangon type overflow boxes. I have yet to see someone who did not get a flood from those things. Its an accident waiting to happen. Drilling your tank with is the safest.

    IJO

  3. #3
    Member amdninjaboy's Avatar
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    I have never drilled through glass before. If you have, is it hard? I assume you need a special drill bit(diamond??) Ive drilled lots of holes in wood and metal but not in glass before...

    Shane.

  4. #4
    ijo
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    liv from this site used to do house visits but I'm not sure he does this anymore. Its not that tough... you just need to keep the bit wet and to take your time. Let the drill do the work.

    Maybe someone else can chime in

    IJO

    IJO

  5. #5
    Member amdninjaboy's Avatar
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    Thanks very much for your help, I will check into getting a drill bit. I had an external overflow on my old 90 gal but never did like it or trust it.. Thanks again IJO..

    Shane.

  6. #6
    Former Moderator a4twenty's Avatar
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    if you're uncomfortable with drilling the tank, most LFS's will do it for a small fee.
    `

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  7. #7
    Member amdninjaboy's Avatar
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    Thanks everyone, got the holes drilled no problem at all..

    Shane.

  8. #8
    liv
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    ya.. I still drill tanks... but kind of stopped since I've moved.. tools are in storage for a while.

    glad u drilled them ok.
    the key is to keep the bit submerged, not put more the 10lbs of pressure and not to drill over 1000rpm. ( I usually keep it at 8lbs and 850rpm ) fully submerged under water ( using a container, some vaseline or playdoh as a gasket and filling that container with water ) works great.

    moving.. so temporarily out of SW :b8:
    planning next tank, possibly 60x30x20 on 2x plasma.
    updated: 2011/05/30

  9. #9
    Member amdninjaboy's Avatar
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    Ya I used a piece of plywood clamped to the tank. Had it full of water and flushed the water a couple times when it started getting milky.. Worked like a dream.. Had my cordless drill in low gear and just let the weight of the drill and the bit do its thing..

    Shane.

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