drilling oveflow in acrylic tank

[ganjero]

Hi, I'm upgrading my tank to a bigger acrylic tank that I'm gonna drill. I don't want to lose any space inside the tank so building an overflow inside is not an option, instead I'm gonna drill two holes , one on each corner. My questions is how can a make the overflow holes be under the water? because last time I did this the water only covered half of the hole and I felt like a lost a 1" of water volume on the upper part of the tank.

I was thinking in drilling the holes a little lower this time, and using elbows going up on the back. is this going to work? is it safe?



Thanks

 

[rustybucket145]

will be fine. be sure you have some noise control in place. Personally I'd rather have a coast to coast triangle type overflow rather than a 90deg pvc fitting visible in the tank.

 

[Hop]

Many, many ways to do this. I would run a search. A coast to coast may be an option or drill the holes lower and invert an elbow. Or build an external overflow...

 

[ganjero]

This is what I was thinking on doing. I'm not sure if 1 will work better than 2 or if it is the same. The small hole is on a cap on a pvc pipe going higher to avoid noise.

 

[ganjero]

bumpy

 

[ganjero]

nobody on this

 

[S_Stoney_S]

would say that either version will work just fine. Make sure your measurements are accurate

 

[ganjero]

does any one have pictures of using just holes on the back?