**~~TOTW- Water Circulation~~**

[EdgeKrusher]

Thanks Maxx.
Oh I thought there was a manual pump that you worked inside the stand pipe... not a bad idea. LOL

Peace

EK

[Craig Manoukian]

Mike,

The spread sheet says the macros have been disabled and the "SOLVE" button is not functioning.

[Craig Manoukian]

Thanks Maxx I went to the site and saw the 330 GPH plus or minus.

Now what diameter gravity feed do I want to use to match the Mag 7? I will put a gate valve to control the flow and mexactly match the return pump capacity.

Thanks again everyone for all of the input on this thread!

[jks1]

Thanks for all the great info, it will definately help me in designing my new 75g!

[Scooterman]

Yea thanks again, I need to post some ideas to get my CLS plumbed.

[Cosmic]

You won't need a gate valve to fine tune your flow, and here's why:

Your tank is only going to drain so low, correct? When it gets to that "low" point, it stops draining.

Now, otoh, your pump is returning a constant velocity, correct? This means that your tank water is going to drain however fast you return it to the tank. Any 3/4" -1" drain will handle a 330 PGH drain. The important thing is just to make sure your drain is LARGE enough to handle the return. It's not going to drain any faster than your pump gives it back to the aquarium, as the water will just flow back down before raising tank water height.

Confusing, but hopefully that made a little bit of sense?

Cos

[Maxx]

Thanks Cos....beat me to the answer...was downstairs working on my stand...
Nick

[EdgeKrusher]

K guys, got a question. Check out this link and tell me what I'm doing wrong. I am thinking about creating a closed loop system that pushes 20X flow. Wanted to use a Mag 2 but the calculator says that my design is going to need a bigger pump, now keep in min I have a 12 gallon eclipse nano, so I don't want a pump bigger than the tank. maybe I'm doing something wrong. I'll try and get diagram up today. Thanks

EK

[Scooterman]

you have 65" of vertical head?

[EdgeKrusher]

yeah that includes the pvc that is going into the tank. I wanted the out puts longer than what is shown in that pick, I want some water flow near the bottom of the tank as well. I have a rough diagram sketched out, but I'm moving it to a format that I can post, since I don't have a scanner.

EK

[Scooterman]

Looks like a Mag 5 would put out around 175gph @ that head.

[Web2000]

I just put a closed loop on my 120. I have 400 gph running through my refuge and back into my tank. Then we made a gravity feed into a pump running at 1500 gph. We put a ball valve at the chiller so that 500 gph would run off into the chiller then back inot the main line. We then put another ball valve at the UV so that 100 gph would run into the UV and then back into the main line. Then it returns to the tank in two diagonal corners from eachother to create a nice comotion in the center of the tank. It was quite an undertaking from the 4 power heads that were in the tank, but everything seems to be doing quite well now. My Colt coral seems to be benefitting the most from the change. He's grown very robust since the change.

[EdgeKrusher]

400 gph in your refugium? Doesn't that negate the purpose of a refugium?

[Maxx]

EK,
Why do you have twelve 90 degree elbows in your plans? Four 90's make a full circle.....ya building a water slide?
Nick

[Scooterman]