obrien.david.j Posted February 26, 2020 Share Posted February 26, 2020 As part of my fishroom remodel, I need a new "sump". In reality, it's a Plexi Box. Nothing Fancy. It's going in a garage fish room. A few imperfections are not an issue, as long as it's Not Going To Fail. Anyone have a reference for a plexi builder? I'd like to contact them right away, but I don't need the box for 2+weeks. Box size is 32” Long x 26” Wide x 23” Tall. Please PM with contact info. Quote Link to comment Share on other sites More sharing options...
pdxmonkeyboy Posted February 26, 2020 Share Posted February 26, 2020 I think you are going to be in for a little wake up call in terms of timelines, and cost. 1 Quote Link to comment Share on other sites More sharing options...
Burningbaal Posted February 26, 2020 Share Posted February 26, 2020 Where is local? People in this group someone's live 8 or more gotta from each other.Seattle? Bend? Newport?Up here (Seattle), clear Fabrications seems to be the go to guy, but there's choices all overSent from my SM-G965U using Tapatalk Quote Link to comment Share on other sites More sharing options...
obrien.david.j Posted February 27, 2020 Author Share Posted February 27, 2020 You Got Me! I didn't define local. 1st choice, within an hour+ drive of Portland Tons farther out from that, would have to be a heck of a deal Thanks for making me more clear. Quote Link to comment Share on other sites More sharing options...
obrien.david.j Posted February 27, 2020 Author Share Posted February 27, 2020 19 hours ago, pdxmonkeyboy said: I think you are going to be in for a little wake up call in terms of timelines, and cost. Help calibration me. Also, remind me what kind of material would be good for this box. I know not all plexi's are created equal - which kind do I want? And thickness thoughts; 3/8", 1/2" ? Quote Link to comment Share on other sites More sharing options...
obrien.david.j Posted February 27, 2020 Author Share Posted February 27, 2020 Okay - I retract my question. This sump will be 1/2" plexi. Little google work, found this site and reference and math. https://www.goindustrial.ca/index.php/en/aquarium-building-with-acrylic PLANNING YOUR TANK To determine what thickness acrylic sheet should be used, the calculation below can be used assuming the base is uniformly supported. T - thickness of sheetH - height of tankL - length of tank Required Thickness T (in)= q = maximum water pressure (lbs/in.2) = (0.0361 lbs water/in3)* H (inches)H = aquarium height (inches)α = maximum permissible stress for ACRYLITE GP in an aquarium (750 psi)β = coefficient from L/H relationship as follows: L/H 0.25 0.50 0.75 1.00 1.50 2.00 3.00 4.00 β 0.037 0.120 0.212 0.321 0.523 0.677 0.866 0.940 Note: For L/H ratios not shown, use the β value for the next higher ratio. Quote Link to comment Share on other sites More sharing options...
pdxmonkeyboy Posted February 28, 2020 Share Posted February 28, 2020 calibration incoming... 1. it is not Plexiglas, it is Acrylic. Plexiglas is a name brand of acrylic, like kleenex. 2. There are two general kinds of acrylic. extruded and cast. Cast is much much much stronger and doesn't melt when you machine it. ALL aquariums are made from cast acrylic. At that height, you will need cast. 3. at 23" height you can totally get away with 3/8" acrylic. 1/2 inch will bow less, but either one is way structurally sufficient. If you are having a hack build it that is off the shelf solvents (not going to name names but local) then I would go 1/2. The cost savings is nominal at best. 4. While you may want a box, your box will have to be braced along the top or it will bow and I mean bow BIG TIME. 2' tall 1/2 will probably bow 3-4" without a brace across the top. I think that timeframes for a custom build are going to be in the 2 month range 2 Quote Link to comment Share on other sites More sharing options...
obrien.david.j Posted February 28, 2020 Author Share Posted February 28, 2020 Calibration appreciated, and the clarification on Acrylic (vs plexi). Top rim bracing is understood/makes complete sense. (and expected) Timeframe, now that's a shocker. Good to get calibrated! Thank you 1 Quote Link to comment Share on other sites More sharing options...
pdxmonkeyboy Posted February 28, 2020 Share Posted February 28, 2020 You may want to reach out to James at envision acrylics. He is a top shelf builder but as such, is not cheap by any means. I think he quoted Brian about 2K for a similar sized tank (but that likely included overflows and what not). Quote Link to comment Share on other sites More sharing options...
obrien.david.j Posted March 2, 2020 Author Share Posted March 2, 2020 Thanks for the inputs, both in replies and PM's. Today I went a different direction and decided i'll chop down a used 120 and make it into a sump. (24 x 24 x 48) It means I'll have to accommodate 1" taller than planned, and 2" narrower than planned. But I'll see if I can fit a bit more than 32" into the spot. Why change directions? Length of time to get a sump (have it now). Cost, yes I got calibrated and decided to just put the cash other places. 1 Quote Link to comment Share on other sites More sharing options...
R-3 Posted March 2, 2020 Share Posted March 2, 2020 (edited) These are as close as I can find to your dimensions on a readily available sump https://www.coralvue.com/icecap-36xl-reef-sump. Why were you thinking 23" high? Thats a pretty tall sump. Edited March 2, 2020 by R-3 Quote Link to comment Share on other sites More sharing options...
R-3 Posted March 2, 2020 Share Posted March 2, 2020 Heres a better price https://www.fishtanksdirect.com/coralvue-icecap-36xl-reef-sump.aspx?gclid=Cj0KCQiA1-3yBRCmARIsAN7B4H36CLefK4qkFhlW3z4vdyDvIzfBTJLjO3b8W2hML4mtUtfuQl6ofrUaArLDEALw_wcB Quote Link to comment Share on other sites More sharing options...
Nick Posted March 2, 2020 Share Posted March 2, 2020 6 hours ago, R-3 said: These are as close as I can find to your dimensions on a readily available sump https://www.coralvue.com/icecap-36xl-reef-sump. Why were you thinking 23" high? Thats a pretty tall sump. The icecap sumps are really nice! Nice clean look as well in my opinion. Quote Link to comment Share on other sites More sharing options...
obrien.david.j Posted March 2, 2020 Author Share Posted March 2, 2020 Thanks for finding the icecap sump, looks really nice. Why 23", because three tanks (each about 24"x48" of surface area) are feeding into this sump when power goes off and I want maximum non-overflow capability At this point - Sump Secured. Will just have to break out the tools. Quote Link to comment Share on other sites More sharing options...
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