OK another silly question from a rookie.

[sampsonndelila]

I am getting a new tank... OK, the new tank is drilled in the bottom of the tank. How do I keep that system from overflowing in the event of a power loss? I fully understand (now) the gravity fed system stops when the overflow is in the right location height and it stops the water from flowing out of the sump in the event of power failure... What component does this, in a drilled situation?

[Mr Cob]

As soon as the water level in the display drops below the overflow it will stop.

[txav8r]

The height of the stand pipe?

[sampsonndelila]

i dont know i will have to take a better look how its set up. It sounds like to me it will all run out till it dry...lol I hope not.

[brewercm]

Where are the holes drilled? Are they in a section that has a built in overflow or just out in the open where maybe it was previously used for a closed loop?

Can you post a picture so we can give you more information.

[Texreefer]

you will have to put standpipes in,,,, if you want overflows you will have to put those in as well. I will try and get some pics up so you will know what i'm talking about

[Texreefer]

another option for those holes is a closed loop with ball valves

[Gseclipse02]

http://i76.photobucket.com/albums/j20/onebrickstrait/Picture089.jpg

is this what ur tank looks like ( the pipes coming from the bottom)??? minus the size and fish lol ...

[Texreefer]

It also depends on where the holes are drilled.. if they are in the corners, you can do this
http://i122.photobucket.com/albums/o258/itili/DSC01915.jpg
http://i122.photobucket.com/albums/o258/itili/DSC01916.jpg
I had my tank grilled in the corners for returns and overflows, then added standpipes

[ErikH]

If it's directly in the center, have ace make you a rectangular box for an island style calfo!

[BigKGlen]

WOW!!! That looks an awful lot like Steve's tank!