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  1. #1
    Senior Member weeble's Avatar
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    flow rates through bulkheads?

    im looking at drilling my 15 gal for a refugium, im gonna try it myself with my dremel tool i hear its easy...gonna practice on a old tank first incase...what im wondering is how big of a bulkhead do i need? i have a bulkhead here thats 1" will that be enought to handle the flow out of my skimmer?
    Craig

    Tank: 77gal reef, deltec AP600 skimmer, 440W VHO lighting.
    Livestock:Coral beauty, Tomato Clown, Yellow Tang, magenta dottyback, 3 stripe damsel, yellow tail damsel, coral banded shrimp

  2. #2
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    Is that a 1" bulkhead or a 1" hole? A 1" hole would be only about 1/2"-3/4" piping size.

    Can you explain your plumbing plan a bit more? Is the refugium going to be in a sump? Will the skimmer in in the sump or external? Why are you having water flow into the refugium throuhg a bulkhead rather than just going over the top of the tank?
    Nick

  3. #3
    Senior Member weeble's Avatar
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    ok sorry my fault im going to have the skimmer output flow into the refugium which will be above the main tank the bulkhead will be going back to the main tank. the bulkhead i have has 2 options its a 1 inch hole but i can go 3/4 if i screw inside diameter and 1 inch if i go outside i'll see if i can get a pic of the bulhead so you see better
    Craig

    Tank: 77gal reef, deltec AP600 skimmer, 440W VHO lighting.
    Livestock:Coral beauty, Tomato Clown, Yellow Tang, magenta dottyback, 3 stripe damsel, yellow tail damsel, coral banded shrimp

  4. #4
    Senior Member weeble's Avatar
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    all i want to know is will 3/4 be enough flow to handle the skimmer output? or should i go with the 1" wondering how much flow each could handle
    Craig

    Tank: 77gal reef, deltec AP600 skimmer, 440W VHO lighting.
    Livestock:Coral beauty, Tomato Clown, Yellow Tang, magenta dottyback, 3 stripe damsel, yellow tail damsel, coral banded shrimp

  5. #5
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    On reefcentral.com there is bulkhead size calculator. You just have to enter the flowrate and it will tell you the minimum size of the bulkhead you need.

    Steve

  6. #6
    Senior Member reefmutt's Avatar
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    what is the size of the output plumbing on the skimmer? you cannot go with a smaller diameter than what the skimmer has already.
    Matt.

    Old system torn down to make a playroom.. planning a 62x42x28 high

  7. #7
    Senior Member weeble's Avatar
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    skimmer output is 1 inch
    Craig

    Tank: 77gal reef, deltec AP600 skimmer, 440W VHO lighting.
    Livestock:Coral beauty, Tomato Clown, Yellow Tang, magenta dottyback, 3 stripe damsel, yellow tail damsel, coral banded shrimp

  8. #8
    Senior Member
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    If your 1 inch bulkhead fitting is the usually used type you will need a 1.75 inch hole to except it. I strongly recommend you but the fitting first and cut the hole accordingly
    Rob

  9. #9
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    is it really possible to use a dremel?????

  10. #10
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    Isn't this going to cause a lot of flow to go through your refugium?

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