Return pump size help

[scollier]

Ok getting my 300 gallon AGE shortly and am looking for any help on the what size return pump I will need. Including the stock tanks I will have around 450-500 gallons total water.

Here are some CAD pics of the tank:

Top

Side

Front to back

Overflow Limitations
Tank has basically 20 inches of overflow if you factor out the 10" for the two waveboxes.

The over flow will have two 1.5" drains and one 1" return. My fish room is in my basement and not directly below the tank. Its about 16ft vertical and 16 feet horizontal to get to the display tank. There will be an estimated three 45 degree elbows in the mix.

I used the two calc's on RC and based on what i see the overflow would handle 1350-1500gph... does this sound right? Or more? Or less?

I don't plan on putting heaters in the display tank so the more the better...

Pump Choice
Using RC's head loss calc and selecting a Blueline HD 100 it says I will have a total of 25.63 feet of head pressure, or 11.07 PSI with a flow rate of 1293 GPH. Looking at the Reeflo pumps like the Hammerhead or UNO Marlin would any of these work.. what would give me what I need...

thanks again!

 

[67belvedere]

I do not think that you will get that kind of gph through a single one inch return. I would go for at least two one inch returns and a bigger pump like one of the Reeflo pumps that you can throttle back if needed. Or to run other equipment off of it also

 

[JayM]

1300 GPH through a 1" return pipe isn't going to happen. FWIW, you will be better off not putting much more flow through your baement system than your skimmer can handle. I run about 500 GPH through each of the 1" drains in my systems and supplement flow in the tanks with nanostreams and MP40's. My corals are happy.....

 

[delta]

2-1-1/2" drains should handle that flow.The overflow at 20" will be pushing alot I am pushing 900 through 21" and it is on the side of too noisy for me. But I am not total sure of the placement of the wave boxes. Or if they are going to be just tunzes on a Aquasurf
or the like.

I would be concerned with the noise& salt spray from the overflow with the wave boxes. End over flows are not that noise friendly when it comes to wavboxes. And the wave will crash into and possible over the overflow. Again not totally sure of your setup but a double wave maybe also be somewhat a solution to this.

 

[jrmx635]

pump size and flow

I have two 1 1/4 inch drains on my tank with a reeflo snapper.
The snapper is only 98 watts and with my plumbing I asked reeflo what my flow should be and they estimated 1500 gph.
My overflows have no problems and I was thinkin of buying a dart impeller to get even more flow.
the dart impeller will put me around 2500 gph.
I may have to throttle it back though
I would go reeflo because of there watt to flow ratio and killer warrenty service.
bluelines and iwakis style pumps are great but drive up the electric bill quik