drilling a established tank?

any one ever done it? I need to either drill my tank as is with fish and rock in it or just get a hang on overflow box. what are other peoples thoughts?

 

Welcome to 3reef, you did post in the wrong sub forum but the easiest way would be a eshopps overflow

Drilling with everything would be a bad idea IMO

 

yea I couldnt decide which sub forum to put this in.

 

I have moved this to the general section for you Dan Az

I know it has been done before, someone on this site has done as you described
I just cannot recall, who and when
hopefully someone will come along and point us in the right direction later

my preference would be for the overflow option
it is certainly easier to do
and it does not have the risks associated with drilling a tank

if the tank was empty and something went wrong = irritating and inconvenient
if the tank was stocked and water level lowered to drill and it goes wrong = panic time

 

thats kinda where I was leaning, I have been looking at the cpr overflows with aqualifter pump as they seem pretty disaster proof, any others out there or is the cpr basically as good as it gets?

 

can it be done i was thinking of doing it has anybody done it

 

+1

I wouldn't recommend the cpr; the aqualifter is just another point for possible failure; if it breaks, you get a flood.

OTOH, if you match an eshopps overflow with a return pump of similar GPH rating, you'll never have any problems with it.

 

even if you have a check valve at the top of the cpr? I have heard of people complaining that the utubes on the eshopps gradually collect bubbles and eventually break the siphon.

 

The only way they lose siphon is be because people use a underrated return pump.
I'm going on 3 months and don't have a single air bulbble in my utube.

Just make sure you get the correct box and return pump or even better get a larger pump and dial it down just in case you want to add reactors to your plumbing.

I can take pics to show you how mine is if you'd like.;D

 

I have an eshopps overflow, just got it a couple months ago. But, I love it. A bit noisy at times but that can be fixed. Most of my reefer buddies pushed me away from a CPR unit.(ironic, since they are made in the same town we live).
+1 bad idea to drill an established tank.