drilling a 120

darkiss · 11/21/2012, 07:34 AM

I have someone who will drill my 120gallon (4x2x2)

How many holes and what sizes should I do?

It will be side drilled

bnumair · 11/21/2012, 08:06 AM

it always good to have back up so u need 2 drains 1.5" and 2 returns 1".
but you can get away with 1 each. i had a tank once 4x2x2 with only 1 drain 1.5" and 1 return 1".

hanas · 11/21/2012, 08:26 AM

I'm assuming this is for an overflow or closed loop?

RocketEngineer · 11/21/2012, 09:19 AM

Personally, I would look into a BeanAnimal Silent and Safe Overflow. Combined with a coast-to-coast weir, it provides the best flow options and maximizes surface skimming. If you so desire, you can put the return lines through the back glass but I prefer to go over the top as keeping the outlets near the surface minimizes the amount of water that siphons from the tank with a power outage.

RocketEngineer

LetsGetTanked · 11/21/2012, 04:05 PM

+1 for BeanAnimal. I will be putting one on my next tank!

mcgyvr · 11/21/2012, 04:56 PM

Quote:

Originally Posted by LetsGetTanked

+1 for BeanAnimal. I will be putting one on my next tank!

+1000..
I did all 1-1/2" drain plumbing but if I did it again I would drop down to 1" for the main siphon channel only though and keep everything else 1-1/2"
I just think the main siphon channel could be smaller to fill/start quicker.. Heck I've got the valve on that line (and only that line) and its like 75% closed.
But its DEAD SILENT..

darkiss · 11/21/2012, 09:41 PM

Okay I have someone that is coming over to drill two 1inch and two 1.5inch

Where should the holes be drilled at?

Then I was thinking about buying a overflow box from BRS and putting it over the holes.

Do that sound about right ?

hllywd · 11/21/2012, 11:39 PM

Quote:

Originally Posted by darkiss

Okay I have someone that is coming over to drill two 1inch and two 1.5inch

Where should the holes be drilled at?

Then I was thinking about buying a overflow box from BRS and putting it over the holes.

Do that sound about right ?

Do you mean holes for 1" and 1.5" bulkheads, or 1" and 1.5" holes? Just making sure you're aware there's a difference....

darkiss · 11/21/2012, 11:41 PM

Okay what one should it be? Bulk head size sound correct?

hllywd · 11/22/2012, 12:04 AM

I know 1" schedule 40 bulkheads normally take a 45mm hole saw, that's a little bigger than 1.75". IIRC a sch 40 1.5" bulkhead requires a 60mm hole. Check your specific bulkheads.

OregonReefer2 · 11/22/2012, 12:20 AM

Not to sound like an *** but IMHO it doesn't sound like you have this planned out very well. I would suggest you do a little more research before drilling your tank so you can be sure you're happy with it.

darkiss · 11/22/2012, 01:11 AM

Yes I am

Okay I will make sure he drills them for the bulkhead sizes.

So two of the holes go behind the overflow box or all of them?

How far apart should the holes be from the top and sides?

11/21/2012, 07:34 AM	#1
darkiss Registered Member Join Date: Sep 2012 Posts: 569	drilling a 120 I have someone who will drill my 120gallon (4x2x2) How many holes and what sizes should I do? It will be side drilled

11/21/2012, 08:06 AM	#2
bnumair Dr. Reef at ur service Join Date: May 2009 Location: Tulsa, Ok, USA Posts: 7,751 Blog Entries: 15	it always good to have back up so u need 2 drains 1.5" and 2 returns 1". but you can get away with 1 each. i had a tank once 4x2x2 with only 1 drain 1.5" and 1 return 1". __________________ Water Quality: NO3 0,Phos 0,Cal 440,Alk 7.5,Mag 1300 "Reef Fast, You Crash, Reef Slow, You Pass" Mike's Reef 3:16 Current Tank Info: 350g DT,95g sump, 50g Frag tank, 4800gph return 4x Sea swirls. 6x AI Vega Color. 200# Pukani rock, dual recirculating skimmer, Biopellet, GFO Carbon rx's, Cal rx. Closed loop. 1.5hp chiller, genesis renew. Apex & RKE

11/21/2012, 09:19 AM	#4
RocketEngineer Space is big. Join Date: Feb 2007 Location: Maryland Eastern Shore Posts: 3,226	Personally, I would look into a BeanAnimal Silent and Safe Overflow. Combined with a coast-to-coast weir, it provides the best flow options and maximizes surface skimming. If you so desire, you can put the return lines through the back glass but I prefer to go over the top as keeping the outlets near the surface minimizes the amount of water that siphons from the tank with a power outage. RocketEngineer __________________ -RocketEngineer "Knowledge is what you get when you read the directions, experience is what you get when you don't." - Unknown Current Tank Info: None Currently

11/22/2012, 12:04 AM	#10
hllywd Premier World Traveler Join Date: Nov 2000 Location: Ohio Posts: 4,293	I know 1" schedule 40 bulkheads normally take a 45mm hole saw, that's a little bigger than 1.75". IIRC a sch 40 1.5" bulkhead requires a 60mm hole. Check your specific bulkheads. __________________ "The moment you doubt whether you can fly, you cease forever to be able to do it..." J.M. Barrie Current Tank Info: 210 AGA RR, Apex, 3x Kessil A360W & 2x 80W T5s, GEO 618 Ca Rx, BM220 CS2 skimmer, Tunze 6100s, 42" ETSS/AE Tech refugium/sump

11/21/2012, 08:26 AM	#3
hanas Premium Member Join Date: Nov 2005 Location: Fairfield, CT Posts: 795	I'm assuming this is for an overflow or closed loop?

11/21/2012, 04:05 PM	#5
LetsGetTanked Registered Member Join Date: May 2012 Location: Galloway, OH Posts: 103	+1 for BeanAnimal. I will be putting one on my next tank!

11/21/2012, 09:41 PM	#7
darkiss Registered Member Join Date: Sep 2012 Posts: 569	Okay I have someone that is coming over to drill two 1inch and two 1.5inch Where should the holes be drilled at? Then I was thinking about buying a overflow box from BRS and putting it over the holes. Do that sound about right ?

11/21/2012, 11:41 PM	#9
darkiss Registered Member Join Date: Sep 2012 Posts: 569	Okay what one should it be? Bulk head size sound correct?

11/22/2012, 12:20 AM	#11
OregonReefer2 Registered Member Join Date: Mar 2012 Posts: 324	Not to sound like an *** but IMHO it doesn't sound like you have this planned out very well. I would suggest you do a little more research before drilling your tank so you can be sure you're happy with it.

11/22/2012, 01:11 AM	#12
darkiss Registered Member Join Date: Sep 2012 Posts: 569	Yes I am Okay I will make sure he drills them for the bulkhead sizes. So two of the holes go behind the overflow box or all of them? How far apart should the holes be from the top and sides?