27 gallon cube

[RAYISKING]

I am getting a free tank from a from that is a marineland cube 20"W x 18"D x 20"H stand is 22.5"w x 20.5"d x 31.25"h the tank has a 1.5 inch bulkhead with an over flow box and 1 return. what size pump do i need to return back to the here is a pic of the plumbing so far but i cant figure out which pump i need.

 

[RAYISKING]

This is what it looks like any help would be great so I can finish up.

 

[KathyC]

I ran a tank about that size with a Mag 5. You could also use a Mag 7 and put as gate valve on the output of the pump to adjust the flow. Be sure to place a union valve to connect the pump (so you can remove it easily to service it).

I'm sure there is also an Eheim that will do a great job, but I am unsure of their numbering system on pumps. Maybe someone else can chime in with that info.

 

[RAYISKING]

Thank you very much I think I will go with a mag 7 now to find one.

 

[RAYISKING]

How do I know how much I am suppose to fill the tank and sump say if the power goes off

 

[INNEED]

That looks like a custom made sump and well made should be self explanatory fill the tank up let it run down the pvc down to ur sump. once all sections are fill u should be good from there...but just to make sure cut the power off and see if ur sump over flows if it come flow to over flowing just remove some water...

 

[rkaragozler]

Can you take some pictures from the front of the tank so we can see how that is set up.
those numbers for a tank that is only 27 gallons sound a bit overkill, was it drilled by the previous owner.

 

[RAYISKING]

Yes it was drilled by the previous owner here is the pic of the front

 

[RAYISKING]

That looks like a custom made sump and well made should be self explanatory fill the tank up let it run down the pvc down to ur sump. once all sections are fill u should be good from there...but just to make sure cut the power off and see if ur sump over flows if it come flow to over flowing just remove some water...

Custom King Sump. the return never really fills up all the way is that ok it makes so much noise when it is not covered by water.

 

[rkaragozler]

Great, Like Kathy said you can run either a mag 5 (45 watts), or mag 7 (70 watts) and throttle it back, or you can also use an eheim 1250 (28 watts), or an 1260 (65 watts) and throttle that back.
As far as which one you want to go with will depend on what you want your turnover rate to be. I my self like a 3-5x turnover, and make up the rest with power heads.

 

[RAYISKING]

Thank you very much this is very helpfull am i wrong that my drain is draining 600 gph. And should i put a T on the return so I can return some of the water back into the sump?

 

[rkaragozler]

Your drain will handle more than if it's a true 1 1/2", That size pvc without any restriction will handle up to 2100 gph, but it would be very loud.
I would only put a t on the return if you are using a larger pump.

 

[RAYISKING]

UPDATES also i have a gargle sound from the overflow box glassholes overflow box does that mean i do not have enough flow going to the tank.

 

[INNEED]

nice rock work...

 

[RAYISKING]

thank you.

 

[RAYISKING]

Ok so I ended up getting a mag 12 yea I know it may be over kill but I think it is great flow for the tank and my return is 1 inch up and just at the tip it is 3/4 in the tank so I think I am only pushing about 700 in the tank can anyone let me know where the calculator would be.

 

[rkaragozler]

I think you will have more than 700 gph with a mag 18.
here is a flow chart.
http://www.marineandreef.com/Articles.asp?ID=124

 

[RAYISKING]

ok well everything seems ok going threw the cycle will update as I go.