Where to put tank drains?

What did Eric suggest?  He would be the one to talk to I think.

Well, I know that some would disagree, but the 90 I bought ha two holes drilled in the bottom for drain/return.  The drain uses a Durso type system.  I really like it, but as some have pointed out it will be a real b**ch if the bulkheads ever leak!

Cool on the 55...how old is your daughter?  My 10 year old son is starting to get the saltwater itch! 

Are you using an overflow box? 

Maybe I'm missing something here. . .

But if you have bulkheads installed with an overflow box - then if the bulks heads were ever to leak can't you turn off the return pump - let the overflow drain and then take out the leaky bulks heads and replace them?  Sure it would be a chore. . .

I would have Eric drill the bulkheads and do an overflow box for the tank. 

Wow! I am really impressed that he can maintain it already.
You must be feeding him supermilk for the superbaby.

I agree with Jon,  I have a similar setup.  Take in to consideration that with out the durso type style drain you may not get enough air into the drain and it may cause gurgling noises.  The concern may also be how much room you have for the plumbing inside your box between your bulkheads and the overflow boxes inside your tank.  If you are having your boxes made take that into consideration. You can accomplish the durso by putting a tee instead of an elbow on the outside drainpipe of your tank drawing.

Here's what mine looked like:

I would go with one inch pipe.  My boxes had baffles cut in all around the top edge.  When the power is cut to the drain I loose water in the tank only to the baffles, about one inch.

I have 1-1/2" pipes using the same thing that Jon did on my new tank. Street ells, and I'm clamping my bulkheads to the back just like Jon.