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Discussion Starter · #1 ·
What does it usually cost to get a couple holes drilled in a tank? I have to tear down my 65 and move it soon, and realized how perfect of a time it would be to get three holes drilled in the back.
 

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Discussion Starter · #4 ·
I am thinking 1" in the middle for the overflow and a two 3/4" for the return, one on each end.
 

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Most people don't drill for the returns assuming your talking about drilling the sides and not the bottom most non-factory drilled tanks are tempered on the bottom so not an option.

So if your planning to drill the back for returns, It limits your return configurations. Yes, it may gain you a little less head pressure but really not enough of a pro IME to do it that way. IME best to just come over the top with your return(s). Depending on how high the returns are drilled, unless you use check valves ( which I don't trust ) you could end up draining more water in a power outage than over the top where you can use a small hole to break siphon and not drain down completely down to the nozzle which will occurr with drilled returns without check valves.
 

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Discussion Starter · #6 ·
Good thinking. I am with you on this. All I need then is one 1" on the back for getting the water to the sump.
 

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Also, always a good idea to drill two holes not just one. Mostly for redundancy reasons in case on get clogged or partially clogged but also to increase you options later if you decide to increase the return pump flow. I typically recommend 1.5" vs. 1" simply because it's cost no more to do it that way and will allow more flow. If you want to still just go with one then 1.5" is definately the way to go because allows more flow than a 1".
 

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Hooked on H20
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To answer your cost question, I think $20/hole is the going rate, plus the bulkhead. Make sure you know the hole size required for the bulkhead you are going to use. For example a 1.5" bulkhead can take anywhere from a 2-1/8" to a 2-1/2" hole depending the bulkhead.

Chris
 

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Discussion Starter · #9 ·
So does anyone know who is closest to st cloud that drills tanks? Would a regular glass company do it, or do you need a "tank specialist"
 

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RIP Steve Irwin
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I paid 75 for two little holes and 1 big one. Not the best price out there but it was convenient.
goetzc said:
To answer your cost question, I think $20/hole is the going rate, plus the bulkhead. Make sure you know the hole size required for the bulkhead you are going to use. For example a 1.5" bulkhead can take anywhere from a 2-1/8" to a 2-1/2" hole depending the bulkhead.

Chris
 
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