
then i thought no use brain first beer in celebration lol. what size hole should i drill for out and do i need to add another hole for return thanks james. (30"by 1ft by 15" tank)
You dont NEED 2 holes, but it looks a lot cleaner if you have two. You can take the return line up over the top with a series of 90 degree bends, but that doesnt look as good as just a hole in the back 