Jokes on me!!

[nayotte]

Okay, so I just bought a 220gallon. The tank is drilled with corner overflows. Each overflow has a one inch bulkhead and a one inch return. I even had my LFS call the company and ask what size the bulkheads would be before I bought the tank. I brought this up to my LFS. He said the tank should be designed to work properly. The tank at its best can only drain 1200 gph?? So now that the tank is full and running my overflows dont come close to keeping up with my pump. Isn't it common knowledge that a reef tank should turnover at least 10 times per hour. Why would any manufacturer build a tank that couldn't handle this requirement? Do all the large tank owners out there drill their own tanks? Or do you all use overflows? I'm venting but also looking for advice/help. The best I have come up with is to use all four holes to supply my sump then just build a different return hanging off the back. Do any of you have this same tank, what do you do?