What pump would you recommend for a closed Loop?

[miktrav2]

What pump would you recommend for a closed loop? I would like to use a mag 7. Is this good enough?


Thanks,

Mike

 

[LA-Lawman]

Hi,

We need a little more info..

How big is your tank?

How much turn over would you like to create?

how will the pump be plumbed... on the floor. a table near the bulkheaed or ...?

 

[mountainbiker619]

Im using a Iwaki MD20RLXT

 

[miktrav2]

The tank is 75 gallons, the pump would be located approximately 4 feet from the return which would enter the tank just below the water's surface at the top. I was thinking 5x turnover. The tank is drilled at the back for the closed loop and is reef ready as well.

Mike

 

[mountainbiker619]

if my simple math is correct:

75x24=1800/5=360

taking head pressure into account, a pump around 450-500 gph would suffice.

 

[LA-Lawman]

MB- good call on the iwaki,

you might also want to think of the CSL velocity pumps.. or even a quiet one... You should install a ball valve regardless....

I like the quiet ones because they are small.

 

[Robin Goodfellow]

75x24=1800/5=360

hi.
A bit tired from the daylite saving time... so what is the "24" for in the equation above?

 

[mountainbiker619]

24 hours in the day

 

[Robin Goodfellow]

...ok... so when reefers talk about turnovers, do they mean turnover per hour, or per day?

 

[mountainbiker619]

by no means I am sure my figure is correct...my thinking was one turn over per hour (75) times the hours of the day (24) which gave the total number of gallons turned over in a 24 hour period. miktrav2 said he wanted it to turn over 5 times..so the total number of gallons a day devided by 5 came to 360.

 

[miktrav2]

mountainbiker69,

Do you know if the mag pumps can be run inline instead of submersed? I was told by others that it could be but wasn't recommended. I was never told why it wasn't recommended. The product description says it can be used inline. Why are people telling me it shouldn't be? These pumps are a lot less expensive than the Iwakis and I'd like to save some money if at all possible do you have a recommendation?

Mike

 

[Robin Goodfellow]

75x24=1800/5=360

hi.
It is interesting that 24/5 is around 5, so your estimate is of 360 gal is pretty close.

My version is the following:

75 gal * 5 times/hour = 375 gal/hour. Beside this little nick-picking point, all your suggestion is fine.

 

[mountainbiker619]

yea...on my way home I was thinking..my not just multiply 75 x 5..lol
But why make it so easy..lol