I have a 55 gal I want to setup with overflows. I want some advice on drilling the back of the tank. Is it better to drill low ( option A ) and use a conventional durso standpipe setup or would it be better to drill high
( option B )and have the Standpipes on the outside of the tank.
http://img.villagephotos.com/p/2005-3/982874/overflow.JPG
( option B )and have the Standpipes on the outside of the tank.
http://img.villagephotos.com/p/2005-3/982874/overflow.JPG