Plumbing For Tank

[TexasState]

When you plump, remember that each turn in your plumbing=1 head loss.

[manny]

Just for the rep that they have. They're supposed to be really good from what I've heard and I've just figured to go with the best at first instead of having to replace somethin that's just gonna be 'ok'. Oh yeah, and I don't have a gift certificate :? Maybe you're thinkin someone else?

[manny]

So, with what I'm plannin, I'd have 4 90 degree turns. That's 4 head losses which means what? Sorry for the ignorance. I knew I'd loose some gph but didn't know how much exactly

[TexasState]

For none pressure rated pump, each feet of travel distance will result in one head loss. Doing a 90 degree turn will result in a head loss. So if you're buying a Mag 5, which is stated as 500 GPH, the actual GPH making it back to the main tank will be less then 500 GPH. For the head loss amount, you will have to look at the chart for the specific pump you're using. Here's a head loss calculator: http://www.reefcentral.com/calc/hlc2.php
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Model: : MD30RLT*
Inlet(MPT) / Outlet(MPT) : 3/4" / 3/4"
Flow Rate @ 4` Head : 510 GPH
Max Head ft: 17.7

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Model: : MD30RLXT*
Inlet(MPT) / Outlet(MPT) : 1" / 1"
Flow Rate @ 4` Head : 960 GPH
Max Head ft: 13.5
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Model Conn-ections
In/Out Motor Output (HP) Motor Speed (RPM) Amps Max Flow (GPM) Max Head (Ft) Max Sys Pressure (PSI) S.G. Weight (lbs)
WMD-20R(T) 3/4 1/38 3100 0.48 8.2 14.1 10.0 1.1 7
WMD-20RX(T) 1 1/38 3100 .50 13.7 8.2 5.7 1.3 7
WMD-30R(T) 3/4 1/16 3150 1.00 10.0 17.7 11.6 1.3 9
WMD-30RX(T) 1 1/16 3150 1.00 19.0 13.5 8.5 1.1 9
WMD-40R(T) 3/4 1/12 3200 1.90 13.7 21.3 14.2 1.1 10
WMD-40RX(T) 1 1/12 3200 1.90 22.4 15.4 10.0 1.1 10
MD-55R(T) 1 1/9 3400 1.60 18.4 26.9 17.1 1.2 10
MD-70R(T) 1 1/4 3400 2.8 25.6 31..8 21.3 1.0 13
MD-100R(T) 1 1/3 3300 3.40 35.6 39.0 25.6 1.2 -

[manny]

Good info. Now I'm really unsure of what pump tp get....Started with one, now I'm lookin at three :?

[dan]

i've got a 100 iwaki if you want to hook it up. lol going to hook it up to my 250. will build a manifoil and that will feed my tank, refugium, skimmer and the nano. i still think for the size of your tank you should use a mag drive. if you still wanted to go with an iwaki i would do the 20

[manny]

The mag drive as an external Dan?

[DeletedAccount]

Mag's are great becasue they can be internal or external. I have one that has changed functions several times. It is nice to be able to take the pump out of the sump and use it inline instead of having to buy a new pump!

[JesterGrin_1]

Dan Sent e mail on pump

[TexasState]

I don't think there's any needs to plumb a 30 gallons long tank. Put your heater inside your skimmer. Add a hang on refugium. The Mag pump will add noise & heat to your tank. Not to mention it could leak if the impeller cover break from you moving the plumbing around.