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Old 31-07-2013, 11:36 PM   #201
johnchor
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hey bro llewellyn

your rabbit again! i like that rabbit.

ya i am just wondering if 2 Tom800 is better than 1 Shanda SDP-10000A. i not not sure too?
maybe some bros have experience using 2 smaller pumps instead of 1 big pump... not sure how effective it can be?

thanks
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Old 01-08-2013, 03:41 PM   #202
llewellyn
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The only advantge of using two powerhed/pump is incase one down, the other still works ...
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Old 01-08-2013, 05:43 PM   #203
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I find that they lose more strength in flowrate compared to eheim. Think of them as 4rd gear pumps and Eheim as 2nd gear pumps.

Eheim uses more electricity but can maintain the flowrate better over piping movement.

Use a higher flow rate pump than required cos it does lose quite a bit. A Jebao 5k LPH will probably work the same as a 1264 which has a 3.4-3.6k flow rate if your piping is complicated.

Its still less than half the price and uses less wattage.

You need a bigger compartment in the slum cos the pump is big.

Last edited by lincolngoh; 01-08-2013 at 05:45 PM.
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Old 01-08-2013, 06:53 PM   #204
Zhuoyuting
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Quote:
Originally Posted by lincolngoh View Post
I find that they lose more strength in flowrate compared to eheim. Think of them as 4rd gear pumps and Eheim as 2nd gear pumps.

Eheim uses more electricity but can maintain the flowrate better over piping movement.

Use a higher flow rate pump than required cos it does lose quite a bit. A Jebao 5k LPH will probably work the same as a 1264 which has a 3.4-3.6k flow rate if your piping is complicated.

Its still less than half the price and uses less wattage.

You need a bigger compartment in the slum cos the pump is big.

Logical but do you mean that if the pump is low wattage the flow rate going through a complicated series of piping flow rate will drop by alot.

where else if i use a 1264 high wattage pump going through a complicated series of piping flow rate will only drop slightly?

Let take this two pump as a comparasion.

Ehiem 1264 is rated at 4500l/hr @ 3.5m head for 100watts

iwaki MD-40rx is rated at 4500l/hr @ 3.3m head for 85watts.

I wonder this pump will maintain the flow rate thru a series of complicated pipe.
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Old 01-08-2013, 06:54 PM   #205
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Quote:
Originally Posted by BarraCuda™ View Post
Just tested the iwaki pump. Only 63watts


Sent from my GT-N7000 using Tapatalk 2
best is the pump only take up 65watt..
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Old 01-08-2013, 07:05 PM   #206
canopy
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best is the pumps will not die on you when you need them so much. especially when you are oversea.....
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Old 01-08-2013, 09:14 PM   #207
llewellyn
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Iwaki pump.... Where to get ?
Need to set up another tank soon.
Thank you.
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Old 01-08-2013, 11:58 PM   #208
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i think aqua empire has Iwaki pump... not cheap too...

this pump is not submersible but it is very very powerful, high thrust!!!
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Old 02-08-2013, 01:07 AM   #209
llewellyn
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Thanks John!
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Old 04-08-2013, 05:06 PM   #210
johnchor
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hello bros,

any more options for a large pump?

1) so far Shanda SDP-10000A looks ok. 6500L/hr 100w but the 100w is still seems too high for my liking and i duno how reliable is it... lolz
2) Atman AT107 is finally out of my mind... cos my bros say electric leakage...
3) how about RIO 20?
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