"The New Marine Aquarium" is a good first read. Its about $20 and you can blow through it in an afternoon. It will leave you well armed to hit the stores full of questions.
Secondly, I have had a DSB for about 2 yrs now and its is doing well. I just had to dump another inch of sand in...
Hey, thats my tank!
I happen to have one o' them and use a Velocity T3. This is no longer available because CSL went belly up. If I had to do it again I would use an Eheim 1260. It moves 600G/H, but if you want more flow you can get the 1262 now. It can be used either inline or submerged.
It leaks after only 12 months? Thats no good.
I use vaseline (silicone grease) on the sealing ring to keep it leak free. The main problem I have seen with the 2227/2229 is failure of the piston. I have diabled a few of them and used them as wet/wet filters successfully.
If you are going...
How much flow do you have going through your Dursos?
My experience is that a pair of 1.25" Dursos can handle about 800G/H quietly (definition of "quiet" may vary.) I run 600G/H silently, but with 2x1.5" Dursos you should have greater capacity. I would install a ball valve, or true union, on...
