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  1. #121
    Moderator greech's Avatar
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    Evaporation always occurs at the lowest point of a system (return pump area). If the return is baffled off into a small area the evaporation rate may lead to the pump running dry. A reliable ATO and decent sized FW resovoir can combat this. Main issue would be leaving the tank for extended periods. My tank evaporates about a gallon per day in the winter time and that looks to be about what the volume of that cube.

    If you extend the return to the water inlet area you would need a "T" off of the reurn line to feed the LR/fuge/skimmer area otherwise that area would not get any water.
    SG = 1.024-6; Alkalinity 8.3-9.3 dKH; Calcium 420; Magnesium 1300; Temp = 76 to 80; pH = 7.9-8.3. Alkalinity and calcium are dependent on Mg.

    "You can't be half a gangster" - Jimmy Darmody, Boardwalk Empire





  2. #122
    Bunned RNeiswander's Avatar
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    Here is more of what im thinking. the water in and return pump section will be separated, by the bubble trap. the heights of the baffles are general right now, until i figure out how high i can make them.
    Front view
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    left side wiew
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    If something is worth doing, it's worth doing right.



  3. #123
    Moderator greech's Avatar
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    Yes that will work if I am seeing that correctly. Essentially one baffle (last pane of bubble trap). Water level will remain stable in drain area and fluctuate in the larger area with the return pump. Only concern is if you include a skimmer you will want an ATO so the water level doesn't fluctuate. Or you could make the drain section larger and put the skimmer there. Another option is to split the sump in 3 sections and put your skimmer in the middle.
    SG = 1.024-6; Alkalinity 8.3-9.3 dKH; Calcium 420; Magnesium 1300; Temp = 76 to 80; pH = 7.9-8.3. Alkalinity and calcium are dependent on Mg.

    "You can't be half a gangster" - Jimmy Darmody, Boardwalk Empire



  4. #124
    Senior Member Arakkis's Avatar
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    Yes ato would definitely be good. the diagram seems like you have a lot of surface area so it may evaporate faster than a normal tank.
    Collector of the rare and weird. Still don't have a Sand Worm yet =)



  5. #125
    Bunned RNeiswander's Avatar
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    Quote Originally Posted by greech View Post
    Yes that will work if I am seeing that correctly. Essentially one baffle (last pane of bubble trap). Water level will remain stable in drain area and fluctuate in the larger area with the return pump. Only concern is if you include a skimmer you will want an ATO so the water level doesn't fluctuate. Or you could make the drain section larger and put the skimmer there. Another option is to split the sump in 3 sections and put your skimmer in the middle.
    My skimmers a hob lol. Looks like I may leave it on the dt, or have to get a new one.



  6. #126
    Bunned RNeiswander's Avatar
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    Quote Originally Posted by Arakkis View Post
    Yes ato would definitely be good. the diagram seems like you have a lot of surface area so it may evaporate faster than a normal tank.
    I plan on doing this, it seems like a good idea regardless.
    I'm wanting this sump to just look like another tank. I think I'm going to try to get black acrylic to build the sections.



  7. #127
    Moderator greech's Avatar
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    Why can't you hang it off the sump? I have never thought to ask but I didn't think HOB skimmers had to have a steady water level?
    SG = 1.024-6; Alkalinity 8.3-9.3 dKH; Calcium 420; Magnesium 1300; Temp = 76 to 80; pH = 7.9-8.3. Alkalinity and calcium are dependent on Mg.

    "You can't be half a gangster" - Jimmy Darmody, Boardwalk Empire



  8. #128
    Bunned RNeiswander's Avatar
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    Quote Originally Posted by greech View Post
    Why can't you hang it off the sump? I have never thought to ask but I didn't think HOB skimmers had to have a steady water level?
    Well noise mostly, from what I've seen with mine it matters if you set it up with the outlet out of the water versus in the water. It will skim too much if it's set up with outlet out of water and the outlet gets submerged. I'm sure I can set up something to lessen the noise since I'm sure the water level won't be high enough to submerged it in the return chamber.



  9. #129
    Bunned RNeiswander's Avatar
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    Do you guys think I could remove the canister and just go with the ac110 and skimmer? I've got plenty of live rock and flow. I think it will be ok, but I'd like some other opinions.



  10. #130
    Moderator greech's Avatar
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    No problem. The canister is just one more thing to keep up with and doesn't provide any significant benefit over what you would be running. The HOB can still run media, etc..
    SG = 1.024-6; Alkalinity 8.3-9.3 dKH; Calcium 420; Magnesium 1300; Temp = 76 to 80; pH = 7.9-8.3. Alkalinity and calcium are dependent on Mg.

    "You can't be half a gangster" - Jimmy Darmody, Boardwalk Empire



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