Hello. I have been in the hobby for 3+ years. I set up my 75 Gallon tank with an Eheim 2227 wet/dry, Remro Pro Skimmer, 15w Aqua U.V., 75+ Lbs. of Live Rock. I have entertained the thought of adding a sump/refuguim to my existing set up. I have been doing some general research and have possibly decided on using a rubber maid tub. I just wanted to know if anyone has DIY plans to create this. If any one has a similar set up, I am curious as to what overflow (my tank is not drilled) you use? what flow rate? pump? etc. I appreciate any feed back or help. Thanks.