How to --- Lower the Height of a weir box

Brucey · 02-20-2004, 08:24 AM

Chaps, going on from this thread

http://www.reefsanctuary.com/forums/...5849#post35849

Can anyone tell me the best way to lower the height of my weir box. Glass weir, approx 8mm glass, need to lower by approx 5mm.

Many thanks
Brucey

BoomerD · 02-20-2004, 11:24 AM

You don't really show a picture of your "weir" box, I'm presuming that it's what us Yanks call an overflow

, but if it's glass, and siliconed into place, I think the only way to do i would be to drain the tank, remove it and have it cut. I don't see any other way to do it safely. You MIFHT get away with using a glass cutter & pliers to break it at the score mark, but I'd be awfully nervous that the whole thing might break, and you'd really have a mess.

mps9506 · 02-20-2004, 12:56 PM

Probably could get away with a dremel and the proper bit. I have seen quite a few threads of people doing this on other sites.
I think on of the nano sites show people cutting a ten gallon tank to create an external overflow...
Just a thought.
Mike

Brucey · 02-21-2004, 05:32 AM

Hey mps .... yeah, I've heard of the dremel method too ..... I might give that a go. Boomer, thanks for the reply bud, but I'd rather have the height problems rather than drain the tank down again.

LOL - Weir Box / Overflow. TG picked me up on another one the other day ..... BactoBalls / BioBalls. I wonder how many other's there are out there.

Brucey

BoomerD · 02-21-2004, 08:21 AM

Well Bruce, undoubtedly there are quite a few other terms that are different, but we still manage to communicate!

I was a bit concerned about getting all that glass powder/chips in the tank by the grinding method. Maybe a visit to your local glass shop might yield some answers.

Pro_builder · 02-21-2004, 09:22 AM

Brucey,
I have drained down tanks, to be lower than the grinding area, and used a grinding stone. To grind out a hole in glass, to go to the next larger size bulkhead. Just remember, go slow, you don't want to heat the glass to much or it will crack.

02-20-2004, 08:24 AM	#1 (permalink)
Brucey Reef Lobster Join Date: Nov 2003 Location: Reading, England Posts: 1,292 View Gallery Karma Komment	How to --- Lower the Height of a weir box Chaps, going on from this thread http://www.reefsanctuary.com/forums/...5849#post35849 Can anyone tell me the best way to lower the height of my weir box. Glass weir, approx 8mm glass, need to lower by approx 5mm. Many thanks Brucey __________________ 160UK Gallon. (192US Gallon). 400Lbs LR. Aquamedic Turboflotor 5000 Shorty skimmer. Arcadia 3Series pendant (3x250W 14,000'K MH & 2x58W 60" actinic) (DIY cooling fan). Tunze 7095 Multicontroller & 2xTunze 6100 Streams. Redsea 100 Aquazone Plus ozonizer and redox computer. Aquamedic Ocean Runner 6500 return. TMC Vectron 30W UV sterilizer. Aquamedic Aquaniveau auto top up system through Deltec 500 kalk stirrer. PurityOnTap RO/DI. Deltec FR509 (ROWAPhos). Aquamedic PH computer controlling KNOP HD Calcium Reactor. Setup Nov 2002 See my tank here http://www.reefsanctuary.com/forums/...&threadid=4486

02-21-2004, 05:32 AM	#4 (permalink)
Brucey Reef Lobster Join Date: Nov 2003 Location: Reading, England Posts: 1,292 View Gallery Karma Komment	Hey mps .... yeah, I've heard of the dremel method too ..... I might give that a go. Boomer, thanks for the reply bud, but I'd rather have the height problems rather than drain the tank down again. LOL - Weir Box / Overflow. TG picked me up on another one the other day ..... BactoBalls / BioBalls. I wonder how many other's there are out there. Brucey __________________ 160UK Gallon. (192US Gallon). 400Lbs LR. Aquamedic Turboflotor 5000 Shorty skimmer. Arcadia 3Series pendant (3x250W 14,000'K MH & 2x58W 60" actinic) (DIY cooling fan). Tunze 7095 Multicontroller & 2xTunze 6100 Streams. Redsea 100 Aquazone Plus ozonizer and redox computer. Aquamedic Ocean Runner 6500 return. TMC Vectron 30W UV sterilizer. Aquamedic Aquaniveau auto top up system through Deltec 500 kalk stirrer. PurityOnTap RO/DI. Deltec FR509 (ROWAPhos). Aquamedic PH computer controlling KNOP HD Calcium Reactor. Setup Nov 2002 See my tank here http://www.reefsanctuary.com/forums/...&threadid=4486

02-21-2004, 09:22 AM	#6 (permalink)
Pro_builder DIY Moderator Join Date: Nov 2003 Location: Oxford, Iowa Posts: 1,746 View Gallery Karma Komment	Brucey, I have drained down tanks, to be lower than the grinding area, and used a grinding stone. To grind out a hole in glass, to go to the next larger size bulkhead. Just remember, go slow, you don't want to heat the glass to much or it will crack. __________________ -Troy 180 gallon Reef, 3- 250 XM 15K MH Electronic ballast, 380 watts VHO Actinics, 2- 5 watt LED Moon lights, 100 gal rubbermaid sump, 75 gallon Fuge, ETSS 600 Skimmer, 4700-5400 gph pump for return, Octopus 3000 controller, Iwaki 40 RL skimmer pump, 2- 65w PC 10K fuge lights, 2 55 gallon barrels, Custom light oak stand and hood, misc pumps, extra 600 gallon rated tank size protein skimmer. Purple tang, yellow tang, pacific blue tang, 2 green chromis, 1 Sand sifting star, snails, hermit crabs, 2 mated perculas, pulsing Xenia, Anenome, mushrooms, ricordia, zoanthids, kenya tree 1 1/2" tall, misc other hitchhiker stuff. DIY is my dream... ...well OK the only way I can afford this Addiction!! Just as the light goes on in my head... ... I break the bulb!!

02-20-2004, 11:24 AM	#2 (permalink)
BoomerD Reef Shark Join Date: Nov 2003 Location: Northern California Posts: 5,234 View Gallery Karma Komment	You don't really show a picture of your "weir" box, I'm presuming that it's what us Yanks call an overflow , but if it's glass, and siliconed into place, I think the only way to do i would be to drain the tank, remove it and have it cut. I don't see any other way to do it safely. You MIFHT get away with using a glass cutter & pliers to break it at the score mark, but I'd be awfully nervous that the whole thing might break, and you'd really have a mess.

02-20-2004, 12:56 PM	#3 (permalink)
mps9506 They misunderestimated me Join Date: Jan 2004 Location: Charlotte and Wilmington, NC Posts: 6,862 View Gallery Karma Komment	Probably could get away with a dremel and the proper bit. I have seen quite a few threads of people doing this on other sites. I think on of the nano sites show people cutting a ten gallon tank to create an external overflow... Just a thought. Mike

02-21-2004, 08:21 AM	#5 (permalink)
BoomerD Reef Shark Join Date: Nov 2003 Location: Northern California Posts: 5,234 View Gallery Karma Komment	Well Bruce, undoubtedly there are quite a few other terms that are different, but we still manage to communicate! I was a bit concerned about getting all that glass powder/chips in the tank by the grinding method. Maybe a visit to your local glass shop might yield some answers.

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