Pumps for 125? Closed loop and return

What size are the bulkhead fittings for the closed loop? I have a genx pcx55 pump 1" fittings 1200 gph (pressure rated)

 

If you're interested.

 

Check with Craig (xroads) he's had experience with closed looped systems.

 

The main thing is going to be velocity through the outlet, a 1" fitting will accommodate nearly 1kgph per bulkhead, how many outlets does it have? If its 2 or 3 this pump might be perfect, if its 4-6 or more the. You might think about something larger, and/or a rotating drum aka scwd.

 

That might be perfect for this pump. pictures?
Talk to Craig too to get his input, I would pm him to get his attention. I'm interested to know exactly what he thinks. I understand cl systems entirely but on a theoretical level. I'd like to hear what input Craig has, probably mostly on where to place bulkheads but perhaps more.

 

I have a mag 9.5 return on my 125 with dual overflows. Tried a mag 12 but was to much and overflows couldn't keep up .

 

Thanks for posting this Dave! Ive been looking for a back-up return pump and wasn't aware of the Diablo DC pumps... Those look sweet and very effecient! The other pump manufacturers need to get up to speed with this. Now to decide if I should get the 3500 or the 5500 version. It would be nice to see the flow rates/power consumption at the 6 different settings.


More info:


http://www.fragtasticreef.com/Diabl...0-Pump.htm

 

I really like danner mag drive pumps. I use a mag 3 to run feed my calcium reactor and media reactors. I use a mag 18 as a return pump on my 120 gallon. Although i do not have a closed loop system i have read of others using danner mag drive pumps on closed loop systems. They have a good warranty on their products and are very sturdy and extremely well made.

 

I don't like mag drive pumps personally, they run too hot!

 

Umm 75 bucks I suppose. Let me know if you want it, if you pass anybody else interested here is welcome to buy.

 

Yeah - DC pumps themselves aren't new, they just were not common because there was little need for them which made them expensive... Vortechs and variable speed Tunze's are all DC pumps/powerheads (I think) and they both seem to be pretty reliable. With any product in this hobby though, the first model usually has a few minor things that end up getting enhanced with a newer model a year or two later down the road. I'm willing to bet they won't stay at that low of a price for very long..unless they turn out to be garbage... it would be nice to see a a longer warranty, but I guess 1-2 years is common anymore.


I just have to say, it's about fraggin' time the pump manufacturers get with the program. Hopefully this will help get some competition started in this market... It's certainly long overdue.