Close loop

[Ziggy692]

I going to make a 75 gal a close loop i need some help with size of bulk heads to uses. if you know any one or have done this. or if it just the pro's and con's. thanks.

 

[musty baby]

What kind of pump are you going to use? Need to know what kind of flow/fittings you're talking about, then we can help you out

 

[Ziggy692]

Ryan not sure what pump to use Tiny tool is going to do the glass work. just not sure what bulk heads to use.

 

[leeweber85]

What kind of flow are you looking to get? How many returns?

 

[Ziggy692]

I want good flow I didnt wanna use power heads . I got a 47 gal refuge and it is 48 in long that will go under my tank in the cabinet

 

[musty baby]

Well, still need some more information. First off, what are you looking to keep in the tank? sps and the like? Are you looking for a high flow system, or a system with high flow and medium/low flow areas?

I don't personally see cons in setting up a closed loops. Maximum flow from a given pump at zero head pressure. I would personally incorporate a couple eductors to make the system that much more efficient, but still try to leave some areas of lower flow to keep some lps (I don't care how great a fuzzy stick can look, the lps corals are the best looking things by far )

The pump you use and the placement/size of bulkheads depends on what kind of flow you want throughout your tank. I'll actually be drilling a 75 tomorrow to accomodate a high-flow open loop through a sump. Haven't been able to convince the tank owner of the benefits of a closed loop.

There are a lot of options, we need to know more about what you want out of your tank before we can make suggestions.

Ryan

 

[musty baby]

Of course, there's always the option to go big and reduce with pvc fittings if needed.

 

[Ziggy692]

Ryan we should start with 1 1/2 for all holes. have you seen a close loop work are they neat is the flow good.