Need Advice About My Overflow

travie

Member
I could be minutes away from connecting my tanks, but I've run into a problem. I have my overflow box in the tank(the part that's suppose to be in the tank, but the notches are too big. Like if I were to run it in its current state, the water level will be way lower then I want it to be esp. since I'm running an AC70 filter. I have aquarium sealant. But I'm not sure what to seal over part of the notches on the overflow.

SUMMARY OF QUESTION: What should I use to reduce notches in overflow box so water level is higher in the tank? Thanks for the help.
 

Peterpiper

Member
Is the overflow made of glass or acrilic? I ask because silicone don't work to good on acrilic.
Can you not look at lifting the overflow?
 
  • Thread Starter

travie

Member
I'm pretty sure its plastic. I can't lift it anymore then what is it, because of the hood.
 

Peterpiper

Member
Can you post a pic?

Where the overflow box ( the one that goes into the tank ) is joined to the black plastic, is that bolted? if it is then raise it at this point and trI'm the syphon back the same amount as you raise the box
 
  • Thread Starter

travie

Member
Peterpiper said:
Where the overflow box ( the one that goes into the tank ) is joined to the black plastic, is that bolted?
Not bolted. Just hooks onto.

Peterpiper said:
if it is then raise it at this point and trI'm the syphon back the same amount as you raise the box
I don't get what you mean by trimming the syphon back the same amount as the box is raised.
 

Peterpiper

Member
If it hooks in, could you drill new holes higher for it to hook into? that would raise the box.
The syphon is the "U" shape pipe, and if you raise the box then the pipe may hit the bottom of the box.
 
  • Thread Starter

travie

Member
Gotcha... I'll make sure to raise the U-Tube. There is no more room to drill new holes. Its looking like I will need to raise both boxes as high as I can, and just block part of the notches with plastic and silicon.
 

Peterpiper

Member
Just a thought, can you trI'm the hood so you can raise the overflow?
I don't know what type of hood you have.
 

agsansoo

Member
The overflow box is adjustable. It has nylon screws to adjust the height of the box. This in turn will adjust the height of the water in the tank. Once set to the proper height, like peterpiper said you must notch out the hood.
 
  • Thread Starter

travie

Member
I'm not seeing any screws. I can't really notch anymore out of my hood, because I will start to cut into where my light sits. Side Question: Whats the best way to make sure no fish goes into my overflow?

I have it working... I just need to make sure everything is set the way I want it now.
 

Peterpiper

Member
travie said:
Side Question: Whats the best way to make sure no fish goes into my overflow?
Look for some small plastic netting in a hardware store. In Australia we have gutter guard, this fits into the roof gutters and stops leaf matter going into them, then use cable ties to fix it to the box.
Good to see you got it working
 
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travie

Member
I'll setup the mesh screen next weekend hopefully. My outflow from the pump and overflow were to strong for my fish and tanks. So I'm in the process of connecting both tubes to spare old HOB filters that I have.
 

Peterpiper

Member
You could defuse the return from the pump.. spilt it so it has 4 outlets. What is your total flow you have in the tank?
 
  • Thread Starter

travie

Member
Water pump is rated at 356 gph, and the overflow, I think, is rated up to 500 gph. I will post pictures of the way I have the flow being reduced, but I don't feel completely comfortable with my DIY. Next weekend, I will setup the mesh and split the outflow into at least 4. Thanks for all the help. So hopefully by Monday night, I will have pictures uploaded of my crazy flow reducer.
 

Peterpiper

Member
What size tank do you have? you should have 10 x volume = flow as a min. some will say more.. but 10 is the min ( unless you are keeping seahorses.. )
 
  • Thread Starter

travie

Member
I'm connecting a 29 gallon and 10g. I know its probably dumb to connect tanks that small, but once I finally get a house of my own, I will connect tanks that are bigger.

The first picture is the one that has the overflow connected to it. The current is still too strong with it, so I will be going with PVC pipe. The second picture is the one with the water pump connected to it, which doesn't have the actual HOB in the picture, but that is what the hood looks like.
 

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