Back drilled tanks

[George]

How many holes are there in the back? For 2 holes, you can do a herbie. For 3 holes, you can do a beananimal. Return can be over the top or use one of the holes (if latter, one less hole for drainage). You should build an overflow for sure so that there won't be much water draining to your sump in case the return pump stops for whatever reason.
You can check out my build thread for a herbie and a coast to coast overflow.

[pelle31]

Thanks for the reply's. The tank only has one hole in the top left corner.............anything I can do with that?

[cale262]

Originally Posted by pelle31

Thanks for the reply's. The tank only has one hole in the top left corner.............anything I can do with that?

...cut two more holes


All kidding aside, I personally wouldn't feel at ease with only one drain hole...but that's just me.

[George]

Originally Posted by pelle31

Thanks for the reply's. The tank only has one hole in the top left corner.............anything I can do with that?

You can install a durso. The following web web site has everything you need to know about durso:
http://www.dursostandpipes.com/
I don't know how quite it is but I do know with only one pipe it won't be a fail safe system in case the pipe gets blocked for whatever reason. See if you can drill at least one more hole.