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Old 07/12/2019, 05:20 AM   #1
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Join Date: Jun 2019
Posts: 1
Cabinet hole size

Hi guys, just ordered a cabinet to start my journey. I'm planning to use 2 x 1 inch pipe and 1 x 1/2 inch pipe for the out flow and inflow.

How big is the hole i need to make? Is 3.1 inch x 9.9 inch enough?

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Old 07/12/2019, 07:19 PM   #2
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Join Date: Sep 2003
Location: North Carolina
Posts: 19,116
Your question as stated is very confusing/lacking details..
Here is a table of pvc dimensions
That hopefully allows you to answer your own question

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Old 07/19/2019, 05:43 PM   #3
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Join Date: Feb 2006
Location: Spokane WA
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Note too, when dealing with pipes and hoses, there are TWO measurements, and you need to be aware which one the other guy is talking about: there is the inside measurement (how wide is the water passage) and the outside measurement (how wide is the pipe/hose itself.) Your outer measurement will affect the size of the hole you need to get it through the cabinet (make it a little loose), while the inside measurement may dictate what size nipple on the pump the hose can fit over, during setup.


Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low.

Current Tank Info: 105g AquaVim wedge, chromis, royal gramma basslet, tailspot blenny, ocellaris clown, RBTA, signal goby, yellow watchman, red firefish, chestnut turbo snails, bristleworms, couple of hermits.
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Old 07/27/2019, 06:57 AM   #4
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Location: Grove City, Ohio
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I'm a fan of making whatever holes I need generously oversized. That will allow plenty of wiggle room for the pvc/elbows and any cords you'll be fishing through there as well.

When I built the stand for my 120, I solved the problem by leaving the top 8" on the back of the stand completely open. No worries that way. The plumbing can go wherever it needs to and I can easily route electrical cords as well.

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