Drilling Holes for Overflow box..Simple?

vietmanx

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Jul 31, 2008
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my tank does not have a built in overflow, and i need one to drain into my wet/dry filter below my tank. can i install this myself? i'm reasonably competent with tools, i just need some direction. please someone help me!!
 
my tank does not have a built in overflow, and i need one to drain into my wet/dry filter below my tank. can i install this myself? i'm reasonably competent with tools, i just need some direction. please someone help me!!

The answer is most likely no.Use the HOB boxes that archer suggested. Installing in tank OF boxes require drilling the tank. Which requires special diamond hole saw bit and knowledge about drilling glass. If you can find a pro to drill the tank, I would go that route. The you can install the in tank OF boxes.
The thing about drilling a tank is it's risky. Especially for someone doing it for the first time. Even if you bought the bits, one mistake and you ruin the whole tank.
 
drilling

Check out mom's fish supply or gl*******s.com. I felt just like you, but I finally got the nerve up and made me a intake overflow\skimmer box, ordered a drill bit[$20 U.S.]and drilled 2 1-1/2" holes through the back of the tankand through the skimmer box, I then attached the bulkhead through the back of my 125 and through the box, using the washer and some extra gaskets I tightened the washer attaching the skimmer box with the nut. This works way better than an overflow box or any other filter for that matter.
I made a sump out of a 30 gallon long tote and an empty yellow tidy cats kitty litter box by drilling holes in it along the bottom. Although you can use any sump you want.
The best thing about this setup is if the power goes off there is absolutely no way your tank or sump can overflow as long as you drill a small hole in the input line that goes from your sump to your aquarium just below the water line.
If you have noticed I haven't mentioned drilling the tank. This is because it was the easiest part of the whole project! I purchased the bit from ebay but you can order the whole kit from gl*******s.com/mom's fish supply.com which includes the drill bit, skimmer box, gaskets,anti-siphon bulkheads and baffles. That is everything you would need and they are very cheap price wise and offer the greatest customer service I have ever experienced.
I hoped this helped! Will

P.S. Only thing you'll need to buy is plumbers putty
As long as you go slow with very light pressure
the glass is easy to drill. Check out utube
They have some great videos on this kink of
setup.
 
will74 is right drilling the tank on the back glass can be very simple, I have drilled tanks from 30 gallons up to 180 gallons with no problems. I think the best drill to use is one that you can adjust the speed and the clutch so the bit doesnt try to chatter, IMO you should drill the tank for the return line also and you will want to go down to 1 inch or 3/4 inche bulk head for that. You can go to http://www.glass-holes.com/category.sc?categoryId=3 and they have video you can watch.
 
huh... that kinda makes me wanna get an overflow for my DIY canister
 
you alredy have a hole in the side?
 
vietmanx what size tank do you have, knowing that can make it eisier to explain but you would drill that tank on the back for the overflow then drill 1 or 2 more holes for you to pump the water back into the tank. I am going to drill my 120 in the middle of the back glass towards the top then I am going to drill 1 hole at each end of the tank on the back glass and split my return so half of my water returned will go to each end on the tank hope this makes some sence
 
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